JP4301674B2 - Hot air outlet pipe for blast furnace - Google Patents
Hot air outlet pipe for blast furnace Download PDFInfo
- Publication number
- JP4301674B2 JP4301674B2 JP2000026176A JP2000026176A JP4301674B2 JP 4301674 B2 JP4301674 B2 JP 4301674B2 JP 2000026176 A JP2000026176 A JP 2000026176A JP 2000026176 A JP2000026176 A JP 2000026176A JP 4301674 B2 JP4301674 B2 JP 4301674B2
- Authority
- JP
- Japan
- Prior art keywords
- hot air
- outlet pipe
- blast furnace
- air outlet
- annular body
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Joints Allowing Movement (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、高炉用熱風炉から排出する熱風を搬送する系において、耐熱、耐圧、可縮な伸縮管を設けた熱風炉の出口管に関するものである。
【0002】
【従来の技術】
例えば、図1に示すように、高炉用熱風炉の熱風遮断弁5は熱風出口管3の途中に設置され、熱風炉1の送風切り替え時に遮断機能を発揮する。熱風本管4及び熱風出口管3は、摂氏1200度前後の熱風を0.4MPa程度の高圧で搬送できるよう、図5および図6に示す様に、外面を鉄皮6で構成し、内部には断熱キャスタブル層7、断熱煉瓦層8、耐火煉瓦層9で構築される多層構造としている。
熱風出口管3は各熱風炉1と熱風本管4を繋ぐ管であり、熱風本管4の軸方向の熱膨張や熱風炉1の高さ方向の熱膨張の影響による複雑な軸直角の変位を受ける。また、熱風遮断弁5の交換時には面間を20mm程度拡げて隙間を確保する必要があり、軸方向の変位をも吸収できる構造が求められる。このために、鉄皮6には伸縮蛇腹10を設置し、煉瓦層には可縮材11を挟み込んだ収縮代を設ける構造としていた。
【0003】
また、実開昭58−155598号公報には、吹き付けキャスタブル層を内被した鉄皮の内側に数種類のレンガ層を順次積層した熱風管連結部の目地構造が開示されている。これは、目地中央部に1個の粘土質耐火レンガを配し、これの両側に断熱レンガを左右に厚みを違えて組み付けた第1レンガ層と、目地中央部にアルミナ系耐火レンガを千鳥に組み合わせこれの両側に左右が等厚の断熱レンガを前記千鳥位置のレンガに整列して組み付けた第2のレンガ層と、粘土質耐火レンガで組積形成した第3レンガ層と、目地中央の接合面における段差と該段差に伴う融通空隙を有し前記各レンガ層よりも大きいアルミナ系耐火レンガによる第4レンガ層と、キャスタブルと第1レンガ層との間の全面にわたって介層形成したセラミックファイバーバルク層と、千鳥積や厚み差によって各レンガ層間に形成された間隙に介装したセラミックファイバーバルク片とによって構成され、要部を千鳥積みすることによって接合部をジグザグに形成させると共に、熱膨張による半径方向の変動を各レンガ層間に形成した隙間を利用して吸収するように構成されている。
【0004】
【発明が解決しようとする課題】
ところが、前記したような構造においては、煉瓦層内の収縮代11は煉瓦自体の熱膨張により占有され、軸直角変位に対しては吸収代が不十分となるため、鉄皮の伸縮蛇腹部10が角変位してもこれに同調できず、結果として煉瓦層の破壊を生じ、伸縮蛇腹部10の赤熱をきたしていた。特に断熱煉瓦8は圧縮強度が低く、粉化し易い傾向があるため、ガス流れにより流失し、空洞を作りやすく鉄皮6や伸縮蛇腹部10の赤熱を生じやすいという問題があった。
【0005】
この煉瓦層内の収縮代11の部位は、その前後の煉瓦構造の安定性を確保するためにある程度の煉瓦長を取る必要があり、結果的に熱風遮断弁から遠くなって、熱間補修するにも困難な位置になっていた。
【0006】
また、実開昭58−155598号公報のようにレンガ層の目地部を千鳥配置とし、目地部からのクラックによる熱風管の赤熱を防止する構造においては、目地部を千鳥に配置し、各レンガ層の厚みを変更して各レンガ層における目地部がストレート配置にならないように配置されている。このように各レンガ層に目地により熱風管の赤熱を防止しようとすると、目地の配置が複雑となり、また各レンガ層のレンガ厚みも各層バラバラとりなり、レンガ積みが非常に複雑な配置となる。
【0007】
本発明は、上述の観点から、熱膨張による複雑な軸直角の変異に安定して追従する伸縮構造を熱風出口管の熱風遮断弁近傍に設け、安定した変位吸収代を確保できる高炉用熱風炉出口管を提供せんとするものである。
【0008】
【課題を解決するための手段】
即ち本発明は、以下の構成を要旨とする。
(1)熱風炉から排出する熱風を搬送する熱風出口管を、熱風遮断弁を介して熱風本管に連結し、該熱風本管より高炉本体に熱風を送る経路において、鉄皮の内側に内張し、軸方向に凹凸を形成した金属製環状体を、その凹凸部が組み合うように対向して設置し、該金属製環状体の組み合わせ部に可縮材を詰め、前記金属製環状体の内側に耐火煉瓦を内張し、さらに、鉄皮の外側に組み合わせ部分を跨いで伸縮蛇腹を設けた伸縮構造を前記熱風遮断弁に連接したことを特徴とする高炉用熱風出口管。
(2)前記金属製環状体の内側には、耐火煉瓦が鋳込まれていることを特徴とする前項(1)に記載の高炉用熱風出口管。
(3)前記金属製環状体には、該金属製環状体を冷却する水冷管を埋設したことを特徴とする前記(1)又は(2)に記載の高炉用熱風出口管。
【0009】
本発明になる熱風管構造では、耐火物をその内面に保持する一対の金属製環状体を凹凸に組み合わせ、金属製環状体の間に可縮材を詰めて、その外面側に伸縮蛇腹を設け、熱風管の一部となすものである。
金属母材は一般に鋳鉄または鋳鋼で、鋳造時に耐火煉瓦の外周端部を鋳込むことで煉瓦を強固に保持することができる。
【0010】
【実施例】
以下に、本発明を図面に示す実施例に基づき説明する。
図1は各熱風炉で発生する熱風を熱風出口管および熱風本管を介して高炉に送風するレイアウトを示す。図2は、熱風炉で発生する熱風を送風する熱風出口管の詳細を示す断面図。図3は、図2のA部詳細を示す。図4は、図2のB−B断面図である。
【0011】
図1において、熱風炉1で発生する熱風は、熱風炉1に連結されている熱風出口管3により熱風本管4を介して高炉2へと送風される。熱風出口管3と熱風本管4の間には熱風遮断弁5が配置されている。
【0012】
図2は、本発明の実施例であって、熱風炉1に連結した熱風出口管3の内部構造でを示し、熱風炉1と熱風遮断弁5との問で熱風遮断弁5に隣接して本発明の伸縮管を配置している。
【0013】
図3は図2のA部詳細であって、本発明の伸縮管部の詳細を示す。
図3において鉄皮6は周方向に2分割しており、分割部を伸縮蛇腹10で覆ってシールしている。鉄皮6の内面には断熱キャスタブル7を張設している。この断熱キャスタブル7の内側に金属製環状体A,Bを張設している。本実施例では金属環状体12として鋳鉄を使用した。この金属製環状体12は鉄皮6に合わせてA,Bに2分割(12,12’)しており、分割面を凹凸形状に形成し、この凹凸部が可縮材11を介して嵌合している。この金属製環状体12および12’の内面に耐火レンガ9を張設している。
【0014】
図4は、図3のB−B断面図であり、金属製環状体12および12’には耐火レンガ9を鋳込んで配置したものである。また、金属製環状体12および12’には水冷管13を埋設し、金属製環状体12および12’を水冷してを保護している。
【0015】
【発明の効果】
以上に説明したように、本発明においては耐火物をその内面に保持し、凹凸に組み合う金属製環状体と、金属製環状体の問に可縮材を詰めて、その外面側の鉄皮に伸縮蛇腹を設置した伸縮構造体であり、これを熱風管の一部となす構造とすることにより、以下の優れた効果が得られる。
(1)熱風出口管が受ける、熱風本管と熱風炉の熱膨張による複雑な軸直角の変位に安定して追従することができる。
(2)熱風遮断弁の交換に際して、確実な可縮代を確保し、近傍の煉瓦を過大に圧迫して破壊したり、熱風炉や熱風本管の煉瓦構造に悪影響を及ぼさなくてすむ。
(3)耐火煉瓦は金属製環状体にその外周端部を鋳込まれて堅固に保持されるため、安定した耐火層を形成でき、背面の金属製環状体が直接、熱風に曝されることから防ぐと共に、熱風温度の低下防止を図ることができる。
(4)金属製環状体は水冷することで過熱による強度低下や、鉄皮の温度上昇を防止できる。冷却水は熱風弁冷却用のものをバイパスできるので、このためにポンプや熱交換器を増設する必要はない。
(5)金属製環状体を凹凸に組み合わせる際には、図1のような円筒状に限らず、球面状に組み合わせることもできる。
(6)断熱煉瓦を使用しないため、耐火煉瓦層の背面に空洞ができることはなく、鉄皮や伸縮蛇腹の赤熱を生じにくい。
(7)伸縮蛇腹を熱風遮断弁に近接して設置でき、熱風遮断風弁を取り外した際に保守・点検がし易い。
【図面の簡単な説明】
【図1】本発明の実施例における熱風管のレイアウトを示す。
【図2】熱風炉で発生する熱風を送風する熱風出口管の詳細を示す断面図。
【図3】図2のA部詳細を示す図。
【図4】図2のB−B断面図である。
【図5】従来の構造例を示す部分拡大縦断面図。
【図6】図5のA−A断面図である。
【符号の説明】
1:熱風炉
2:高炉
3:熱風出口管
4:熱風本管
5:熱風遮断弁
6:鉄皮
7:断熱キャスタブル
8:断熱煉瓦
9:耐火煉瓦
10:伸縮蛇腹
11:可縮材
12:金属製環状体A
12’:金属製環状体B
13:水冷管[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outlet pipe of a hot stove provided with a heat-resistant, pressure-resistant, and retractable telescopic pipe in a system for conveying hot air discharged from a blast furnace hot stove.
[0002]
[Prior art]
For example, as shown in FIG. 1, the hot
The hot
[0003]
Japanese Utility Model Laid-Open No. 58-155598 discloses a joint structure of a hot air pipe connecting portion in which several kinds of brick layers are sequentially laminated on the inner side of an iron skin that covers a sprayable castable layer. This consists of a clay brick refractory brick placed in the center of the joint, and the first brick layer assembled on both sides with different thicknesses on the left and right sides, and alumina fireproof bricks in the center of the joint. The second brick layer in which the insulating bricks with equal thickness on both sides are assembled and aligned with the bricks in the staggered position, the third brick layer formed by masonry with clayey refractory bricks, and the joint at the center of the joint A ceramic fiber bulk having a fourth brick layer made of alumina-based refractory bricks having a step in the surface and a gap corresponding to the step and larger than each brick layer, and an intermediate layer formed between the castable and the first brick layer. Layer and ceramic fiber bulk pieces interposed in gaps formed between each brick layer due to staggered stacking or thickness difference, and joining by staggering the main parts The causes are formed in a zigzag, the variation in the radial direction due to thermal expansion is configured to absorb by utilizing a gap formed in each brick layers.
[0004]
[Problems to be solved by the invention]
However, in the structure as described above, the
[0005]
The portion of the
[0006]
Further, in the structure in which the joints of the brick layer are arranged in a staggered manner as in Japanese Utility Model Publication No. 58-155598, and the hot air pipe is prevented from red heat due to cracks from the joints, the joints are arranged in a staggered manner. It arrange | positions so that the joint part in each brick layer may not become straight arrangement | positioning by changing the thickness of a layer. Thus, if it is going to prevent red hot of a hot-air pipe | tube by a joint in each brick layer, arrangement | positioning of a joint will become complicated, and also the brick thickness of each brick layer will be disperse | distributed to each layer, and brick stacking will become very complicated arrangement | positioning.
[0007]
In view of the above, the present invention provides a hot blast furnace for a blast furnace that is provided with an expansion / contraction structure in the vicinity of a hot air shut-off valve of a hot air outlet pipe to stably follow a complex perpendicular transformation due to thermal expansion and can secure a stable displacement absorption margin. An outlet pipe is to be provided.
[0008]
[Means for Solving the Problems]
That is, the gist of the present invention is as follows.
(1) A hot air outlet pipe for conveying hot air discharged from the hot air furnace is connected to the hot air main pipe via a hot air shut-off valve, and the hot air is sent from the hot air main pipe to the blast furnace main body inside the iron shell. A metal annular body having an undulation formed in an axial direction so as to be opposed to each other so that the concavo-convex portions are combined, and the combination portion of the metal annular body is filled with a compressible material, A hot air outlet pipe for a blast furnace, characterized in that a stretchable structure in which a refractory brick is lined on the inside and a stretchable bellows is provided on the outside of the iron shell across the combination portion is connected to the hot air shutoff valve.
(2) The hot air outlet pipe for a blast furnace as described in (1) above, wherein refractory brick is cast inside the metal annular body.
(3) The hot air outlet pipe for a blast furnace according to (1) or (2), wherein a water-cooled pipe for cooling the metallic annular body is embedded in the metallic annular body.
[0009]
In the hot air tube structure according to the present invention, a pair of metal annular bodies that hold the refractory on the inner surface is combined with irregularities, a contractible material is packed between the metal annular bodies, and an expandable bellows is provided on the outer surface side. It is a part of the hot air tube.
The metal base material is generally cast iron or cast steel, and the brick can be firmly held by casting the outer peripheral end of the refractory brick during casting.
[0010]
【Example】
In the following, the present invention will be described based on embodiments shown in the drawings.
FIG. 1 shows a layout in which hot air generated in each hot stove is blown to a blast furnace through a hot air outlet pipe and a hot air main pipe. FIG. 2 is a cross-sectional view showing details of a hot air outlet pipe for blowing hot air generated in a hot stove. FIG. 3 shows the details of part A of FIG. 4 is a cross-sectional view taken along line BB in FIG.
[0011]
In FIG. 1, hot air generated in the
[0012]
FIG. 2 is an embodiment of the present invention and shows the internal structure of the hot
[0013]
FIG. 3 is a detail of a portion A in FIG. 2 and shows details of the telescopic tube portion of the present invention.
In FIG. 3, the
[0014]
FIG. 4 is a cross-sectional view taken along the line BB of FIG. 3, in which
[0015]
【The invention's effect】
As described above, in the present invention, the refractory is held on the inner surface, the metal annular body that is combined with the unevenness, and the metal annular body is packed with a shrinkable material, and the iron skin on the outer surface side is packed. The following excellent effects can be obtained by adopting a structure in which an expansion / contraction bellows is provided and the structure is a part of the hot-air tube.
(1) It is possible to stably follow a complicated displacement perpendicular to the axis due to thermal expansion of the hot air main pipe and the hot air furnace, which is received by the hot air outlet pipe.
(2) When exchanging the hot air shut-off valve, ensure a certain contractible allowance, avoiding excessive pressure on the nearby bricks and destroying them, or adversely affecting the brick structure of the hot air furnace or hot air main.
(3) Since the outer edge of the refractory brick is cast into a metal annular body and firmly held, a stable refractory layer can be formed, and the rear metal annular body is directly exposed to hot air. In addition, the hot air temperature can be prevented from decreasing.
(4) The metal annular body can be cooled with water to prevent a decrease in strength due to overheating and an increase in the temperature of the iron skin. Since the cooling water for bypassing the hot air valve can be bypassed, it is not necessary to add a pump or a heat exchanger for this purpose.
(5) When the metal annular body is combined with irregularities, it is not limited to the cylindrical shape as shown in FIG.
(6) Since no heat-insulating brick is used, no void is formed on the back of the refractory brick layer, and the red heat of the iron skin and the elastic bellows is not easily generated.
(7) The expansion and contraction bellows can be installed close to the hot air shutoff valve, and maintenance and inspection are easy when the hot air shutoff air valve is removed.
[Brief description of the drawings]
FIG. 1 shows a layout of a hot air tube in an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing details of a hot air outlet pipe for blowing hot air generated in a hot stove.
FIG. 3 is a diagram showing the details of part A in FIG. 2;
4 is a cross-sectional view taken along the line BB in FIG.
FIG. 5 is a partially enlarged longitudinal sectional view showing a conventional structure example.
6 is a cross-sectional view taken along the line AA in FIG.
[Explanation of symbols]
1: Hot-blast furnace 2: Blast furnace 3: Hot-air outlet pipe 4: Hot-air main pipe 5: Hot-air shut-off valve 6: Iron skin 7: Thermal insulation castable 8: Thermal insulation brick 9: Fire brick 10: Expandable bellows 11: Retractable material 12: Metal Annular body A
12 ': Metal annular body B
13: Water-cooled tube
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000026176A JP4301674B2 (en) | 2000-02-03 | 2000-02-03 | Hot air outlet pipe for blast furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000026176A JP4301674B2 (en) | 2000-02-03 | 2000-02-03 | Hot air outlet pipe for blast furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001220612A JP2001220612A (en) | 2001-08-14 |
JP4301674B2 true JP4301674B2 (en) | 2009-07-22 |
Family
ID=18551941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000026176A Expired - Fee Related JP4301674B2 (en) | 2000-02-03 | 2000-02-03 | Hot air outlet pipe for blast furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4301674B2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5388280B2 (en) * | 2009-04-07 | 2014-01-15 | 新日鉄住金エンジニアリング株式会社 | Structure of the expansion / contraction part of the piping for hot gas |
JP5172800B2 (en) * | 2009-09-15 | 2013-03-27 | 新日鉄住金エンジニアリング株式会社 | Dismantling method of heat-resistant pipe structure |
CN104593536B (en) * | 2015-01-12 | 2016-06-29 | 山西太钢不锈钢股份有限公司 | A kind of method of online replacing air stove blast furnace gas stop valve |
CN108165694B (en) * | 2018-03-09 | 2023-04-21 | 中冶京诚工程技术有限公司 | Hot air pipeline structure and hot air conveying system |
CN110273038B (en) * | 2018-03-14 | 2021-06-25 | 广东韶钢松山股份有限公司 | Method for replacing short pipe of hot air pipeline corrugated compensator |
CN110042186B (en) * | 2019-05-10 | 2020-12-11 | 武汉钢铁有限公司 | Low heat conduction blast furnace hot air pipeline structure |
CN113088604B (en) * | 2021-03-05 | 2022-11-11 | 唐钢国际工程技术股份有限公司 | Hot blast stove three-fork flat-joint masonry structure and process |
CN114150097B (en) * | 2021-11-11 | 2023-01-06 | 郑州安耐克实业有限公司 | Hot-blast pipeline valve quick replacement structure |
-
2000
- 2000-02-03 JP JP2000026176A patent/JP4301674B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2001220612A (en) | 2001-08-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4301674B2 (en) | Hot air outlet pipe for blast furnace | |
JP5478867B2 (en) | Fire wall device and heat exchanger | |
US3486533A (en) | Pipe insulation jacket | |
JP5702889B2 (en) | Blast furnace tuyere structure | |
JPS5831036Y2 (en) | Internally insulated bellows structure | |
TWI294956B (en) | Industrial kiln | |
US5775269A (en) | Boiler protection tube assembly | |
US9194013B2 (en) | Hot blast stove dome and hot blast stove | |
SU423310A3 (en) | DEVICE OF CONNECTION OF REFRACTORY FIREPLACE OF A WALL AND A PIPELINE FOR HEATED GASES | |
JP2000248305A (en) | Stave cooler | |
JP5388280B2 (en) | Structure of the expansion / contraction part of the piping for hot gas | |
US8176859B2 (en) | Refractory brick and tapered mortar joint | |
JP3785449B2 (en) | Refractory structure of blast furnace cast iron | |
US2345188A (en) | Cooling plate for blast furnace inwalls and mantles | |
JP2001234219A (en) | Refractory structure of gas pipe for high temperature and high pressure | |
JP3674167B2 (en) | Hot air pipe repair structure | |
CN108165694B (en) | Hot air pipeline structure and hot air conveying system | |
KR101305560B1 (en) | Exhaust pipe system for multicylinder gas and diesel engine | |
CN213895902U (en) | Blast furnace tuyere belt structure | |
JPH0135274B2 (en) | ||
JPH10183233A (en) | Heat insulating skid pipe | |
JPS6333118Y2 (en) | ||
JPH0117729Y2 (en) | ||
JP2004131773A (en) | Method for setting duplicate structural furnace body in hot air stove | |
JP5810237B1 (en) | Radiation heat exchanger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20061106 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061108 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20061205 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061207 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20061207 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090415 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090421 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090421 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120501 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120501 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120501 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130501 Year of fee payment: 4 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130501 Year of fee payment: 4 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130501 Year of fee payment: 4 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130501 Year of fee payment: 4 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130501 Year of fee payment: 4 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130501 Year of fee payment: 4 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130501 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140501 Year of fee payment: 5 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |