EP0717784A1 - Aluminium-silicon alloy sheet for mechanical, aircraft and space applications - Google Patents
Aluminium-silicon alloy sheet for mechanical, aircraft and space applicationsInfo
- Publication number
- EP0717784A1 EP0717784A1 EP95920993A EP95920993A EP0717784A1 EP 0717784 A1 EP0717784 A1 EP 0717784A1 EP 95920993 A EP95920993 A EP 95920993A EP 95920993 A EP95920993 A EP 95920993A EP 0717784 A1 EP0717784 A1 EP 0717784A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloys
- mechanical
- sheets according
- sheets
- aircraft
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Definitions
- the invention relates to the field of sheets of medium and high strength aluminum alloys used in mechanical, aeronautical and space construction and in armaments.
- alloys 2000 and 7000 have a much better temperature resistance than that of most alloys 2000 and 7000, and at least equivalent to that of alloys in these series specially studied for their temperature resistance, such as alloys 2019 and 2618.
- Al-Si alloys are used very widely for the manufacture of molded parts. However, in this form, they have far lower mechanical strength, fatigue and toughness properties than the wrought and transformed alloys 2000 and 7000 used in structural parts. In rare cases, they can be used in laminated form, in particular for covering plated sheets intended for the manufacture of brazed heat exchangers. Alloys 4343, 4104, 4045 and 4047 are thus used, for example, the properties sought in this case being essentially a low melting temperature and good wettability.
- Al-Si alloys can also be spun in the form of bars or profiles which, due to their good resistance to wear and temperature, are used in mechanical parts such as connecting rods, brake master cylinders, drive shafts , bearings and various components of motors and compressors.
- One of the alloys used for this purpose is 4032.
- French patent FR 2291284 describes the manufacture of sheets of AlSi alloy containing 4 to 15% of Si by continuous casting between two cooled cylinders. This casting method is intended to increase the elongation at break, and therefore the formability. They are not high-strength sheets usable in structural applications, since the sheets are simply annealed and the elastic limits exemplified do not exceed not 220 MPa.
- Mn ⁇ 0.5% and / or Cr ⁇ 0.5%
- the silicon content is preferably between 6.5 and 8%, corresponding to that of the AS7G alloy.
- Another object of the invention is the use of medium or thick sheets of this alloy for the undersides of aircraft wings, of thin sheets for the coating of aircraft fuselages, of sheets for the manufacture of cryogenic tanks. rockets, floors and skips of industrial vehicles and hulls or supersructures of boats.
- the sheets according to the invention have silicon contents generally corresponding to the fields of alloys AS7G and AS9G according to French standard NF A 57-702 or the designations A 357 and A 359 of the Aluminum Association.
- Magnesium should not exceed 1% to avoid the formation of insoluble intermetallic compound Mg2Si. Copper must be limited to 0.8% to avoid the formation of insoluble phases Mg2Si and Q (AlMgSiCu). This content also makes it possible to limit the sensitivity to intercrystalline corrosion.
- Iron is also limited to 0.3%, and preferably 0.08%, as it is in 7000 alloys for heavy plate, when good toughness and / or good elongation.
- the presence of titanium is linked to the refining of the titanium plates, identical to that used for current medium and high strength alloys. As is usually the case with quality molding alloys, it is necessary to modify the alloy to avoid the formation of primary silicon and to obtain a finely dispersed fibered eutectic structure. For this operation, strontium is preferable to sodium which could cause hot fragility during processing.
- the sheets according to the invention can be obtained by vertical casting of plates, hot rolling up to 6 mm, optionally cold rolling in the case of thin sheets, dissolving between 545 and 555 ° C, quenching with cold water, maturation at room temperature and / or tempering between 6 and 24 h at a temperature between 150 and 195 ° C.
- Hot rolling can be preceded by homogenization between 530 and 550 ° C for a duration of less than 20 h, short enough to avoid a globalization of the fibrous eutectic and a marked coalescence of the manganese and / or chromium, when the alloy contains it.
- the alloy is weldable by conventional TIG or MIG processes, continuous or pulsed, depending on whether it is a thin or thick sheet, and its density is always lower than that of traditional 2000 and 7000 alloys.
- Example 1 homogenized sheet Plates of 380 x 120 mm section of alloy with the following composition (by weight) were produced by vertical casting: Si: 6.77% Mg: 0.59% Cu: 0.24%
- the alloy was homogenized at 550 ° C for 8 hours, after a temperature rise of 4 hours, reheated for 2 hours at 500 ° C, then hot rolled up to 20 mm thick on a reversible rolling mill. Cut sheets were placed in solution for 2 hours at 550 ° C, soaked in water and subjected to an income of 8 hours at 175 ° C, ie a state T651 according to the designations of the Aluminum Association.
- the alloy has a density of 2,678 and a modulus of elasticity E of 74,100 MPa, or a specific module of 27,670 MPa, was measured on the sheet by the hysteresis loop method in tension. 2.770, 72,500 MPa and 26,175 MPa respectively for a sheet of the same thickness in 2024 alloy in the T351 state, an increase of 5.7% in the specific module. This increase is more than 9% higher compared to alloy 2219 for welded construction.
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Laminated Bodies (AREA)
- Continuous Casting (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Soft Magnetic Materials (AREA)
- Coating With Molten Metal (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9407405 | 1994-06-13 | ||
FR9407405A FR2721041B1 (en) | 1994-06-13 | 1994-06-13 | Aluminum-silicon alloy sheet intended for mechanical, aeronautical and space construction. |
PCT/FR1995/000693 WO1995034691A1 (en) | 1994-06-13 | 1995-05-29 | Aluminium-silicon alloy sheet for mechanical, aircraft and space applications |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0717784A1 true EP0717784A1 (en) | 1996-06-26 |
EP0717784B1 EP0717784B1 (en) | 1998-09-16 |
Family
ID=9464309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95920993A Revoked EP0717784B1 (en) | 1994-06-13 | 1995-05-29 | Aluminium-silicon alloy sheet for mechanical, aircraft and space applications |
Country Status (8)
Country | Link |
---|---|
US (1) | US5837070A (en) |
EP (1) | EP0717784B1 (en) |
JP (1) | JPH09501988A (en) |
AT (1) | ATE171222T1 (en) |
CA (1) | CA2168946A1 (en) |
DE (1) | DE69504802T2 (en) |
FR (1) | FR2721041B1 (en) |
WO (1) | WO1995034691A1 (en) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1002334C2 (en) * | 1996-02-14 | 1997-08-15 | Hoogovens Aluminium Nv | Wear-resistant aluminum alloy with good corrosion resistance. |
US6168067B1 (en) * | 1998-06-23 | 2001-01-02 | Mcdonnell Douglas Corporation | High strength friction stir welding |
US6146477A (en) | 1999-08-17 | 2000-11-14 | Johnson Brass & Machine Foundry, Inc. | Metal alloy product and method for producing same |
JP4356851B2 (en) * | 1999-09-03 | 2009-11-04 | 本田技研工業株式会社 | Aluminum die-casting material for ships |
JP2002144018A (en) * | 2000-11-02 | 2002-05-21 | Yorozu Corp | Method for producing light weight and high strength member |
BR0210891B1 (en) * | 2001-07-09 | 2010-12-14 | High strength weldable aluminum rolled product and method to produce the same. | |
DE60231046D1 (en) * | 2001-07-25 | 2009-03-19 | Showa Denko Kk | ALUMINUM ALLOY WITH EXCELLENT FRAGRANCE AND ALUMINUM ALLOY MATERIAL AND METHOD OF MANUFACTURING THEREOF |
US20030143102A1 (en) * | 2001-07-25 | 2003-07-31 | Showa Denko K.K. | Aluminum alloy excellent in cutting ability, aluminum alloy materials and manufacturing method thereof |
FR2832913B1 (en) * | 2001-12-03 | 2004-01-16 | Pechiney Rhenalu | ALUMINUM ALLOY FOR ENAMELLED AND / OR PTFE COATED UTENSILS |
US20100282061A1 (en) * | 2001-12-31 | 2010-11-11 | Asher Peretz | Anti-terror lightweight armor plates and a method of producing same |
US6773666B2 (en) * | 2002-02-28 | 2004-08-10 | Alcoa Inc. | Al-Si-Mg-Mn casting alloy and method |
US20040166245A1 (en) * | 2002-07-29 | 2004-08-26 | Unionsteel Manufacturing Co., Ltd. | Production method for aluminum alloy coated steel sheet |
DE10331990A1 (en) * | 2003-07-14 | 2005-02-24 | Eads Deutschland Gmbh | Welded aluminum structural component with metallic induced cracking |
FR2879115B1 (en) * | 2004-12-15 | 2007-03-16 | Pechiney Softal Soc Par Action | PULSE MIG PULSE TYPE WELDING METHOD FOR ALUMINUM ALLOYS |
US8083871B2 (en) | 2005-10-28 | 2011-12-27 | Automotive Casting Technology, Inc. | High crashworthiness Al-Si-Mg alloy and methods for producing automotive casting |
DE102006032699B4 (en) * | 2006-07-14 | 2010-09-09 | Bdw Technologies Gmbh & Co. Kg | Aluminum alloy and its use for a cast component, in particular a motor vehicle |
JP5300118B2 (en) | 2007-07-06 | 2013-09-25 | 日産自動車株式会社 | Aluminum alloy casting manufacturing method |
JP4719731B2 (en) * | 2007-11-22 | 2011-07-06 | 住友電気工業株式会社 | Aluminum alloy rolled material with excellent machinability and method for producing the same |
US8728258B2 (en) * | 2008-06-10 | 2014-05-20 | GM Global Technology Operations LLC | Sequential aging of aluminum silicon casting alloys |
CN102312137B (en) * | 2011-09-09 | 2016-06-22 | 深圳市中兴康讯电子有限公司 | Aluminum-silicon-magnesium Cast aluminium alloy gold and casting technique |
US9284636B1 (en) * | 2011-12-21 | 2016-03-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Impact toughness and heat treatment for cast aluminum |
CN103008345B (en) * | 2012-12-03 | 2015-06-10 | 三门峡圣辉新型材料有限公司 | Continuous roll-casting production process of aluminum alloy |
EP3128021B1 (en) * | 2014-03-31 | 2018-10-17 | Hitachi Metals, Ltd. | Al-si-mg system aluminum alloy for casting, which has excellent specific stiffness, strength and ductility, and cast member formed from same |
WO2015151369A1 (en) * | 2014-03-31 | 2015-10-08 | アイシン軽金属株式会社 | Aluminum alloy and die casting method |
JP6014785B2 (en) * | 2014-10-31 | 2016-10-25 | 株式会社Uacj | Aluminum alloy substrate for magnetic disk |
WO2016145644A1 (en) * | 2015-03-19 | 2016-09-22 | GM Global Technology Operations LLC | Alloy composition |
WO2017027734A1 (en) * | 2015-08-13 | 2017-02-16 | Alcoa Inc. | Improved 3xx aluminum casting alloys, and methods for making the same |
FR3044326B1 (en) | 2015-12-01 | 2017-12-01 | Constellium Neuf-Brisach | HIGH-RIGIDITY THIN SHEET FOR AUTOMOTIVE BODYWORK |
CN105695816A (en) * | 2016-03-16 | 2016-06-22 | 杜生龙 | Zinc-magnesium-aluminum alloy used for manufacturing supporting frame and preparation method thereof |
US10927436B2 (en) | 2017-03-09 | 2021-02-23 | GM Global Technology Operations LLC | Aluminum alloys |
RU2659514C1 (en) * | 2017-08-17 | 2018-07-02 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Casting aluminum-silicon alloy |
US11597987B2 (en) | 2018-08-14 | 2023-03-07 | Johnson Brass & Machine Foundry, Inc. | Clean aluminum alloys and methods for forming such alloys |
US11149333B2 (en) | 2018-08-14 | 2021-10-19 | Johnson Brass & Machine Foundry, Inc. | Clean aluminum alloys |
DE102019120862A1 (en) * | 2019-08-01 | 2021-02-04 | Benteler Automobiltechnik Gmbh | Process for manufacturing a plate heat exchanger and plate heat exchanger |
CN110964957A (en) * | 2019-12-26 | 2020-04-07 | 北京工业大学 | Cryogenic rolling and aging treatment process for high-strength Al-Zn-Mg alloy |
FR3114448A1 (en) | 2020-09-23 | 2022-03-25 | Constellium Neuf-Brisach | BATTERY BOTTOM FOR ELECTRIC VEHICLES |
CN114672674B (en) * | 2022-02-28 | 2024-03-15 | 中国第一汽车股份有限公司 | Casting-rolling high-strength high-toughness aluminum-silicon alloy and preparation method thereof |
CN115305391B (en) * | 2022-08-10 | 2023-06-06 | 中南大学 | Low-energy-consumption aluminum-silicon-magnesium alloy and preparation method thereof |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE241389C (en) * | ||||
US3400057A (en) * | 1964-06-03 | 1968-09-03 | Reynolds Metals Co | Alloy and finishing system |
DE1255928B (en) * | 1966-01-13 | 1967-12-07 | Metallgesellschaft Ag | Process to achieve a long-lasting refining effect in aluminum-silicon alloys |
US4897124A (en) * | 1987-07-02 | 1990-01-30 | Sky Aluminium Co., Ltd. | Aluminum-alloy rolled sheet for forming and production method therefor |
JPH02159338A (en) * | 1988-12-12 | 1990-06-19 | Kobe Steel Ltd | Al-si alloy and its manufacture |
JP3183545B2 (en) * | 1991-10-09 | 2001-07-09 | 株式会社神戸製鋼所 | High strength aluminum brazing material for brazing sheet |
US5571347A (en) * | 1994-04-07 | 1996-11-05 | Northwest Aluminum Company | High strength MG-SI type aluminum alloy |
-
1994
- 1994-06-13 FR FR9407405A patent/FR2721041B1/en not_active Expired - Fee Related
-
1995
- 1995-05-29 JP JP8501711A patent/JPH09501988A/en active Pending
- 1995-05-29 EP EP95920993A patent/EP0717784B1/en not_active Revoked
- 1995-05-29 AT AT95920993T patent/ATE171222T1/en not_active IP Right Cessation
- 1995-05-29 US US08/537,864 patent/US5837070A/en not_active Expired - Fee Related
- 1995-05-29 DE DE69504802T patent/DE69504802T2/en not_active Revoked
- 1995-05-29 WO PCT/FR1995/000693 patent/WO1995034691A1/en not_active Application Discontinuation
- 1995-05-29 CA CA002168946A patent/CA2168946A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9534691A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE69504802T2 (en) | 1999-03-25 |
US5837070A (en) | 1998-11-17 |
FR2721041A1 (en) | 1995-12-15 |
CA2168946A1 (en) | 1995-12-21 |
DE69504802D1 (en) | 1998-10-22 |
JPH09501988A (en) | 1997-02-25 |
FR2721041B1 (en) | 1997-10-10 |
EP0717784B1 (en) | 1998-09-16 |
ATE171222T1 (en) | 1998-10-15 |
WO1995034691A1 (en) | 1995-12-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0717784B1 (en) | Aluminium-silicon alloy sheet for mechanical, aircraft and space applications | |
JP4115936B2 (en) | Weldable high strength Al-Mg-Si alloy | |
EP1114877B1 (en) | Al-Cu-Mg alloy aircraft structural element | |
FR2855834A1 (en) | High strength aluminum alloy products with high fatigue resistance for use as the sheets and panels of aircraft structural components for the fuselage and wings | |
FR2843754A1 (en) | Balanced aluminum-copper-magnesium-silicon alloy product for fuselage sheet or lower-wing sheet of aircraft, contains copper, silicon, magnesium, manganese, zirconium, chromium, iron, and aluminum and incidental elements and impurities | |
FR2726007A1 (en) | PROCESS FOR MANUFACTURING ALSIMGCU ALLOY PRODUCTS HAVING IMPROVED RESISTANCE TO INTERCRYSTAL CORROSION | |
FR2902442A1 (en) | ALLOY OF AA6XXX SERIES WITH HIGH DAMAGE TO AEROSPACE INDUSTRY | |
GB2378451A (en) | Al-Mg-Si alloy containing cerium | |
FR2843755A1 (en) | High damage tolerant aluminum-copper 2xxx-series alloy rolled product for e.g. aircraft fuselage skin, contains magnesium, copper, zirconium, manganese, chromium, iron, silicon, and aluminum and incidental elements and impurities | |
WO2015011346A1 (en) | Extrados structural element made from an aluminium copper lithium alloy | |
EP0756017B1 (en) | Aluminium-copper-magnesium alloy with high creep resistance | |
CA3006871A1 (en) | Aluminium-copper-lithium alloy having improved mechanical strength and improved toughness | |
EP1339887A1 (en) | Method for producing an aluminium alloy plated strip for making brazed heat exchangers | |
EP3526358A1 (en) | Thin sheets made of an aluminium-magnesium-scandium alloy for aerospace applications | |
FR2859484A1 (en) | Cast aluminum alloy component with high flow resistance for use in turbo-charged petrol and diesel engines, e.g. pistons for internal combustion engines | |
RU2783714C1 (en) | Cladded product based on 2xxx series alloy for aerospace equipment | |
KR102682402B1 (en) | Clad 2XXX Series Aerospace Products | |
RU2785724C1 (en) | CLAD PRODUCT BASED ON ALLOY OF 2xxx SERIES FOR AEROSPACE ENGINEERING | |
EP0375572A1 (en) | Aluminium alloy for cupping, containing silicon, magnesium and copper | |
FR2857377A1 (en) | Aluminium alloy for rolled products with a high capacity of absorption of kinetic energy by plastic deformation, notably for motor vehicle components | |
JP2023517074A (en) | Clad 2XXX Series Aerospace Products | |
FR3122437A1 (en) | Aluminum alloy strip or sheet for the manufacture of brazed heat exchangers | |
WO2019234326A1 (en) | Thin sheets made of aluminium-copper-lithium alloy for aircraft fuselage manufacture | |
Kim | I. ALLOYING OF ALUMINUM |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19960226 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE GB IT LI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PECHINEY RHENALU |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19971125 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE GB IT LI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980916 |
|
REF | Corresponds to: |
Ref document number: 171222 Country of ref document: AT Date of ref document: 19981015 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69504802 Country of ref document: DE Date of ref document: 19981022 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: WILLIAM BLANC & CIE CONSEILS EN PROPRIETE INDUSTRI |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19981214 |
|
PLBQ | Unpublished change to opponent data |
Free format text: ORIGINAL CODE: EPIDOS OPPO |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
26 | Opposition filed |
Opponent name: HOOGOVENS ALUMINIUM WALZPRODUKTE GMBH Effective date: 19990611 |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
R26 | Opposition filed (corrected) |
Opponent name: CORUS ALUMINIUM WALZPRODUKTE GMBH Effective date: 19990611 |
|
RDAH | Patent revoked |
Free format text: ORIGINAL CODE: EPIDOS REVO |
|
APAC | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPO |
|
APAC | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPO |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20040421 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20040429 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20040503 Year of fee payment: 10 |
|
APAA | Appeal reference recorded |
Free format text: ORIGINAL CODE: EPIDOS REFN |
|
APBU | Appeal procedure closed |
Free format text: ORIGINAL CODE: EPIDOSNNOA9O |
|
APBU | Appeal procedure closed |
Free format text: ORIGINAL CODE: EPIDOSNNOA9O |
|
RDAG | Patent revoked |
Free format text: ORIGINAL CODE: 0009271 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT REVOKED |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
27W | Patent revoked |
Effective date: 20050203 |
|
GBPR | Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state |
Free format text: 20050203 |
|
APAH | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNO |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
R26 | Opposition filed (corrected) |
Opponent name: CORUS ALUMINIUM WALZPRODUKTE GMBH Effective date: 19990611 |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |