CN109381097B - Toilet brush, degerming friction pad and manufacturing method - Google Patents
Toilet brush, degerming friction pad and manufacturing method Download PDFInfo
- Publication number
- CN109381097B CN109381097B CN201710667768.8A CN201710667768A CN109381097B CN 109381097 B CN109381097 B CN 109381097B CN 201710667768 A CN201710667768 A CN 201710667768A CN 109381097 B CN109381097 B CN 109381097B
- Authority
- CN
- China
- Prior art keywords
- friction pad
- degerming
- brush
- sterilizing
- toilet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 8
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004094 surface-active agent Substances 0.000 claims abstract description 4
- 230000001954 sterilising effect Effects 0.000 claims description 23
- 238000001746 injection moulding Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 12
- 238000004140 cleaning Methods 0.000 abstract description 8
- 210000004209 hair Anatomy 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000007844 bleaching agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K11/00—Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
- A47K11/10—Hand tools for cleaning the toilet bowl, seat or cover, e.g. toilet brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
The invention relates to a toilet brush, which comprises a brush rod and a brush head connected to one end of the brush rod, wherein the brush head comprises an elastic degerming friction pad, and the edge of the degerming friction pad bulges to form an extension part. The components of the composition comprise: 95% -99.5% of plastic and 0.5% -5% of degerming agent. The degerming agent comprises the following components: 5-10% of surfactant, 5-10% of glutaraldehyde, 40-60% of hydrogen peroxide and 30-50% of activated carbon. The brush structure is omitted, so that the problem of residual stains in the gap between the brush hairs is avoided, and meanwhile, the design that the surface area of the degerming friction pad can be changed through the extension part enables the toilet brush to have stronger adaptability and practicability. Meanwhile, the degerming agent is added into the degerming friction pad material, so that the toilet brush has the functions of sterilization and disinfection while removing stains. Simplifying the original tedious cleaning and disinfection steps.
Description
Technical Field
The invention relates to the field of sanitary ware, in particular to a toilet brush, a sterilizing friction pad and a manufacturing method thereof.
Background
Prior art toilet brushes typically include a handle and a brush head, wherein the brush head has insoluble bristles, which may be formed of nylon or similar materials. The toilet brush can only remove surface stains, but has poor treatment effect on bacteria and viruses. It is used in combination with bleaching agent or other cleaning agent. And the stains are easy to remain in the gaps among the brush hairs and spread everywhere along with the placement, movement and use of the toilet brush.
Disclosure of Invention
In order to solve the problem of easy residual stains in the gaps between the brush hairs, the invention provides a toilet brush as a solution;
the invention provides a degerming friction pad and a manufacturing method of the degerming friction pad, which are used for achieving degerming by matching with a toilet brush.
The technical proposal is as follows:
a toilet brush comprises a brush rod and a brush head connected to one end of the brush rod, wherein the brush head comprises an elastic degerming friction pad, and the edge of the degerming friction pad bulges to form an extension part.
The working principle of the invention is as follows: in order to avoid the problem that dirt is easy to remain among bristles of the traditional toilet brush, the toilet brush provided by the invention adopts a bristle-free design innovatively, and adopts an elastic degerming friction pad as a wiping main body to erase the dirt. However, in practical use, it is found that the toilet brush is mainly used for wiping surfaces of sanitary ware having various shapes such as a washing basin, a toilet, etc., so that it is difficult to clean the sanitary ware comprehensively only by using the sterilizing friction pad having a fixed area and ductility. Without solving the problem, the invention adds an extension part on the edge of the degerming friction pad, and the extension part is a structure which forms a bulge by making the local area size at the edge of the degerming friction pad interference. When the cleaning device is used, the brush head is pressed by the brush rod, so that the degerming friction pad is attached to the surface of the cleaning device, and the stretching degree of the extension part can be adjusted by the force of pressing the brush rod so as to adapt to the surface shape of the cleaning device, and the cleaning is convenient.
Further, the brush head further comprises a supporting plate, and the supporting plate is connected to one end of the brush rod.
The brush head also includes a support plate for providing support for the sterile friction pad so that the sterile friction pad can be deployed and uniformly forced against the sanitary ware.
Further, the degerming friction pad is sleeved on the surface of the supporting plate.
In order to ensure that the degerming friction pad and the supporting plate have excellent connection strength, the situations of slipping, separating, breaking and the like in the using process are avoided. The invention adopts a twice injection molding process to integrally treat the degerming friction pad and the supporting plate, namely, the degerming friction pad is formed by twice injection molding on the surface of the supporting plate.
Further, the surface of the degerming friction pad is rectangular.
In order to adapt to the scrubbing work of sanitary ware with different shapes, the degerming friction pad is designed to be rectangular. The lengths of two adjacent sides are different, when the rectangular short sides are required to extend into a narrow space for wiping, the rectangular long sides are required to be used for wiping a large area, so that time and labor are saved.
Furthermore, two symmetrical end surfaces of the degerming friction pad are provided with drag reduction grooves.
The working principle of the sterilizing friction pad is that the sterilizing friction pad and the contact surface of the sanitary ware generate larger friction force to remove stains. However, too much friction affects the wiping action, making the toilet brush difficult to push. Therefore, a drag reduction groove is arranged on the end face of the degerming friction pad so as to properly weaken redundant friction force.
Further, the surface of the degerming friction pad is provided with grind lines.
When wiping stubborn stains, the surface evenly stressed by the degerming friction pad is singly used for wiping and is difficult to remove. The grind is thus provided at the center of the surface of the sterilized friction pad. The positions of the grinding lines are the joints of the brush rod and the brush head. So that the force applied to the brush rod can be transmitted to the grind position to the greatest extent. Through the design, the pressure to the brush rod can be increased, and the refractory materials can be removed by repeated friction of the grind lines.
A degerming friction pad comprises the following components: 95% -99.5% of plastic and 0.5% -5% of degerming agent.
The working principle of the invention is as follows: the degerming agent is added into the degerming friction pad material of the toilet brush, so that the toilet brush can remove stains and simultaneously finish sterilization and disinfection, and the operation steps of using the toilet brush together with the preparation such as bleaching agent, disinfectant and the like are omitted.
Further, the degerming agent comprises the following components: 5-10% of surfactant, 5-10% of glutaraldehyde, 40-60% of hydrogen peroxide and 30-50% of activated carbon.
A manufacturing method of a degerming friction pad comprises the following steps:
s1: heating the plastic material to a molten state;
s2: adding a degerming agent into a molten plastic material, and mixing and stirring;
s3: injecting the melt mixed by the paddles into a feed inlet of an injection molding machine;
s4: and (5) performing injection molding processing to obtain the molded degerming friction pad.
The working principle of the invention is as follows: in the processing process of the degerming friction pad, degerming agent components are directly added into molten plastic for mixing and stirring, and then injection molding is carried out by an injection molding machine. Simple process and obvious effect.
The beneficial effects of the invention are as follows: the brush structure is omitted, so that the problem of residual stains in the gap between the brush hairs is avoided, and meanwhile, the design that the surface area of the degerming friction pad can be changed through the extension part enables the toilet brush to have stronger adaptability and practicability. Meanwhile, the degerming agent is added into the degerming friction pad material, so that the toilet brush has the functions of sterilization and disinfection while removing stains. Simplifying the original tedious cleaning and disinfection steps. Drawings
The invention is further illustrated by the accompanying drawings, which are not to be construed as limiting the invention in any way.
FIG. 1 is a schematic view of a toilet brush according to an embodiment of the present invention;
FIG. 2 is a schematic view of a sterilizing friction pad for a toilet brush according to an embodiment of the present invention;
fig. 3 is a schematic view of a supporting plate of a toilet brush according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 3, an embodiment of the present invention provides a toilet brush including a brush bar 1 and a brush head 2 connected to one end of the brush bar 1, the brush head 2 including a sterilizing friction pad 21 having elasticity, and an edge of the sterilizing friction pad 21 is protruded to form an extension 211.
In order to avoid the problem that dirt is easy to remain among bristles of the conventional toilet brush, the toilet brush provided by the invention adopts a bristle-free design innovatively, and adopts the elastic degerming friction pad 21 as a wiping main body to wipe out the dirt. However, in practical use, it has been found that the toilet brush is mainly used for wiping surfaces of sanitary ware having various shapes such as a sink, a toilet bowl, etc., and thus it is difficult to clean the entire surface by using only the sterilizing friction pad 21 having a fixed area and ductility. In order to solve the problem, the present invention adds an extension 211 to the edge of the sterilization friction pad 21, and the extension 211 is formed to be raised by making the size of a partial area at the edge of the sterilization friction pad 21 interfere with each other. When the brush is used, the brush head 2 is pressed by the brush rod 1, so that the sterilizing friction pad 21 is attached to the surface of the to-be-cleaned appliance, and the stretching degree of the extension part 211 can be adjusted by the force of pressing the brush rod 1 so as to adapt to the surface shape of the to-be-cleaned appliance, and the cleaning is convenient.
Further, the brush head 2 further comprises a support plate 22, and the support plate 22 is connected to one end of the brush rod 1.
The brush head 2 further comprises a support plate 22 for providing support for the sterile friction pad 21, allowing the sterile friction pad 21 to be deployed and to wipe the sanitary ware with even force.
Further, the degerming friction pad 21 is hollow to form a hollow cavity, and the degerming friction pad 21 is sleeved on the surface of the supporting plate 22 through the hollow cavity.
For convenient replacement, washing degerming friction pad 21, design degerming friction pad 21 to hollow structure, degerming friction pad 21 divide into top surface and bottom surface, and the bottom surface is used for wiping, and the top surface can have very elastic telescopic hole, and telescopic hole and degerming friction pad 21 cavity intercommunication. The support plate 22 connected to one end of the brush rod 1 is plugged into the hollow cavity through the telescopic hole, so that the installation of the sterilization friction pad 21 can be completed.
Further, the surface of the degerming friction pad 21 is rectangular.
To accommodate the scrubbing work of sanitary ware of various shapes, the sterilizing friction pad 21 is designed in a rectangular shape. The lengths of two adjacent sides are different, when the rectangular short sides are required to extend into a narrow space for wiping, the rectangular long sides are required to be used for wiping a large area, so that time and labor are saved.
Further, the symmetrical two end surfaces of the degerming friction pad 21 are provided with drag reduction grooves 212.
The working principle of the sterilizing friction pad 21 is that the contact surface of the sterilizing friction pad 21 and a sanitary ware generates larger friction force to remove stains. However, too much friction affects the wiping action, making the toilet brush difficult to push. A drag reduction groove 212 is provided on the end face of the degerming friction pad 21 to properly attenuate the excessive friction force.
Further, the surface of the degerming friction pad 21 is provided with grind patterns 213.
When wiping a stubborn stain, it is difficult to remove the stubborn stain by wiping only the surface uniformly stressed by the degerming friction pad 21. The grind 213 is thus provided at the center of the surface of the sterilization friction pad 21. The position of the grind pattern 213 is the joint of the brush rod 1 and the brush head 2. So that the force applied to the brush bar 1 can be maximally transferred to the grind 213. By this design, the refractory material can be removed by repeatedly rubbing the refractory material with the grind pattern 213 by increasing the pressure to the brush rod 1.
A sterilized friction pad 21 comprising the components: 95% -99.5% of plastic and 0.5% -5% of degerming agent.
The working principle of the invention is as follows: the degerming agent is added into the degerming friction pad 21 material of the toilet brush, so that the toilet brush can remove stains and simultaneously finish sterilization and disinfection, and the operation steps of the preparation such as bleaching agent, disinfectant and the like which are matched when the toilet brush is used are omitted.
Further, the degerming agent comprises the following components: 5-10% of surfactant, 5-10% of glutaraldehyde, 40-60% of hydrogen peroxide and 30-50% of activated carbon.
A method for manufacturing a degerming friction pad 21, comprising the following steps:
s1: heating the plastic material to a molten state;
s2: adding a degerming agent into a molten plastic material, and mixing and stirring; degerming
S3: injecting the melt mixed by the paddles into a feed inlet of an injection molding machine;
s4: injection molding is performed to obtain a molded sterilized friction pad 21.
In the processing process of the degerming friction pad 21, degerming agent components are directly added into molten plastic for mixing and stirring, and then injection molding is carried out by an injection molding machine. Simple process and obvious effect.
The elimination of the bristle structure prevents the problem of residual dirt in the bristle gap, and the design of the surface area of the degerming friction pad 21 can be changed through the extension 211, so that the toilet brush has stronger adaptability and practicability. Meanwhile, the degerming agent is added into the degerming friction pad 21 material, so that the toilet brush has the functions of sterilization and disinfection while removing stains. Simplifying the original tedious cleaning and disinfection steps.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (2)
1. A toilet brush, characterized in that: the novel sterilizing brush comprises a brush rod and a brush head connected to one end of the brush rod, wherein the brush head comprises a supporting plate and an elastic sterilizing friction pad, the supporting plate is connected to one end of the brush rod, the sterilizing friction pad is sleeved on the surface of the supporting plate, the edge of the sterilizing friction pad bulges to form an extension part, the surface of the sterilizing friction pad is rectangular, drag reduction grooves are formed in two symmetrical end faces of the sterilizing friction pad, and grinding lines are formed in the surface of the sterilizing friction pad; the stretching degree of the extension part can be adjusted by the force of pressing the brush rod so as to adapt to the surface shape of the appliance to be cleaned;
the degerming friction pad comprises the following components: 95-99.5% of plastic and 0.5-5% of degerming agent;
the degerming agent comprises the following components: 5-10% of surfactant, 5-10% of glutaraldehyde, 40-60% of hydrogen peroxide and 30-50% of activated carbon.
2. A method of making a sterilized friction pad according to claim 1, comprising the steps of:
s1: heating the plastic material to a molten state;
s2: adding a degerming agent into a molten plastic material, and mixing and stirring;
s3: injecting the mixed melt into a feed inlet of an injection molding machine;
s4: and (5) performing injection molding processing to obtain the molded degerming friction pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667768.8A CN109381097B (en) | 2017-08-07 | 2017-08-07 | Toilet brush, degerming friction pad and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667768.8A CN109381097B (en) | 2017-08-07 | 2017-08-07 | Toilet brush, degerming friction pad and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109381097A CN109381097A (en) | 2019-02-26 |
| CN109381097B true CN109381097B (en) | 2023-12-05 |
Family
ID=65413624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710667768.8A Active CN109381097B (en) | 2017-08-07 | 2017-08-07 | Toilet brush, degerming friction pad and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109381097B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471697A (en) * | 1994-12-05 | 1995-12-05 | Daconta; Frank J. | Disposable disintegrating cleaning device |
| JP2000292288A (en) * | 1999-04-02 | 2000-10-20 | Alps Electric Co Ltd | Pressure sensor |
| KR20060063874A (en) * | 2003-07-08 | 2006-06-12 | 에스.씨. 존슨 앤드 선, 인코포레이티드 | Cleaning brush with disposable/replaceable brush head |
| EP2052657A2 (en) * | 2007-10-22 | 2009-04-29 | Taxi Studio Limited | Toilet cleaning device |
| KR20110020667A (en) * | 2009-08-24 | 2011-03-03 | (주)삼원에스티 | Soft touch pen for capacitive touch screen panel |
| CN102132995A (en) * | 2003-06-20 | 2011-07-27 | 高露洁-棕榄公司 | Oral care implement |
| CN104144631A (en) * | 2012-03-09 | 2014-11-12 | 3M创新有限公司 | Fryer cleaning tool with cleaning head with cleaning pad slidably mountable thereon |
| CN104684449A (en) * | 2012-07-10 | 2015-06-03 | 托尔斯坦·布伦讷 | Cleaning implement |
| CN104783842A (en) * | 2015-04-10 | 2015-07-22 | 山东大学 | Novel anti-drag surface texture biopsy needle |
| CN206117401U (en) * | 2016-11-07 | 2017-04-19 | 中国石油天然气集团公司 | Pumping -unit motor quick travel device |
-
2017
- 2017-08-07 CN CN201710667768.8A patent/CN109381097B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471697A (en) * | 1994-12-05 | 1995-12-05 | Daconta; Frank J. | Disposable disintegrating cleaning device |
| JP2000292288A (en) * | 1999-04-02 | 2000-10-20 | Alps Electric Co Ltd | Pressure sensor |
| CN102132995A (en) * | 2003-06-20 | 2011-07-27 | 高露洁-棕榄公司 | Oral care implement |
| KR20060063874A (en) * | 2003-07-08 | 2006-06-12 | 에스.씨. 존슨 앤드 선, 인코포레이티드 | Cleaning brush with disposable/replaceable brush head |
| EP2052657A2 (en) * | 2007-10-22 | 2009-04-29 | Taxi Studio Limited | Toilet cleaning device |
| KR20110020667A (en) * | 2009-08-24 | 2011-03-03 | (주)삼원에스티 | Soft touch pen for capacitive touch screen panel |
| CN104144631A (en) * | 2012-03-09 | 2014-11-12 | 3M创新有限公司 | Fryer cleaning tool with cleaning head with cleaning pad slidably mountable thereon |
| CN104684449A (en) * | 2012-07-10 | 2015-06-03 | 托尔斯坦·布伦讷 | Cleaning implement |
| CN104783842A (en) * | 2015-04-10 | 2015-07-22 | 山东大学 | Novel anti-drag surface texture biopsy needle |
| CN206117401U (en) * | 2016-11-07 | 2017-04-19 | 中国石油天然气集团公司 | Pumping -unit motor quick travel device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109381097A (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10694719B2 (en) | Self-cleaning pet grooming scrub brush | |
| JP7107848B2 (en) | Cleaning tool with removable cover | |
| CN109381097B (en) | Toilet brush, degerming friction pad and manufacturing method | |
| DE4425376A1 (en) | Shower brush | |
| CN208286928U (en) | A kind of toilet bruss | |
| CN2779953Y (en) | Cleaning brush | |
| JP2015024105A (en) | Sliding washer | |
| TW201515602A (en) | Toothbrush bristles fast cleaner | |
| KR101933119B1 (en) | Scrubbers | |
| KR200342807Y1 (en) | Washing brush for bath | |
| CN108113798A (en) | A kind of sanitary tool for easily cleaning auricle | |
| JP2024005430A (en) | Cleaner for tongue | |
| CN217592786U (en) | Tableware cleaner | |
| KR200479202Y1 (en) | Cleansing apparatus for face | |
| KR200234847Y1 (en) | a functional toothbrush | |
| CN204698485U (en) | Novel dish mop | |
| JP4339965B2 (en) | Cleaning tool | |
| KR200333018Y1 (en) | Automatic washing apparatus | |
| CN210353682U (en) | Tooth brush | |
| KR200268337Y1 (en) | a shower head have the body clean articles | |
| JP3199369U (en) | Cleaning tool | |
| JP2007105342A (en) | Tongue cleaner | |
| KR200371972Y1 (en) | Water-jetting toothbrush | |
| KR101753851B1 (en) | hand brush for floorcloth cleaning | |
| KR20210144323A (en) | Bathroom cleaning tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |