Global Patent Index - EP 1080254 A1

EP 1080254 A1 2001-03-07 - METHOD FOR REMOVING A HARD MATERIAL LAYER DEPOSITED ON A HARD METAL WORK PIECE, AND A FIXING DEVICE FOR AT LEAST ONE WORK PIECE

Title (en)

METHOD FOR REMOVING A HARD MATERIAL LAYER DEPOSITED ON A HARD METAL WORK PIECE, AND A FIXING DEVICE FOR AT LEAST ONE WORK PIECE

Title (de)

VERFAHREN ZUR ENTSCHICHTUNG EINER AUF EINEM HARTMETALL-WERKSTÜCK AUFGEBRACHTEN HARTSTOFFSCHICHT UND HALTERUNG FÜR MINDESTENS EIN WERKSTÜCK

Title (fr)

PROCEDE POUR ELIMINER UNE COUCHE DE SUBSTANCE DURE APPLIQUEE SUR UNE PIECE EN METAL DUR ET ELEMENT DE RETENUE POUR AU MOINS UNE PIECE

Publication

EP 1080254 A1 (DE)

Application

EP 98913496 A

Priority

CH 9800152 W

Abstract (en)

[origin: WO9954528A1] A hard material layer deposited on a hard metal work piece is removed by electrolytic passivation in which a maximum current density equal to at least 0.01 A/cm<2> is generated on the work piece at the beginning of the layer removal process. In doing this, the hard material layer rapidly flakes off without causing substantial damage to the hard metal material located underneath.

IPC 1-7 (main, further and additional classification)

C25F 5/00

IPC 8 full level (invention and additional information)

C25F 5/00 (2006.01); C25F 7/00 (2006.01)

CPC (invention and additional information)

C25F 5/00 (2013.01); C25F 7/00 (2013.01)

Citation (search report)

See references of WO 9954528A1

Designated contracting state (EPC)

CH DE FR GB LI SE

EPO simple patent family

WO 9954528 A1 19991028; AU 6818898 A 19991108; DE 59808931 D1 20030807; EP 1080254 A1 20010307; EP 1080254 B1 20030702; JP 2002512309 A 20020423; JP 4434489 B2 20100317

INPADOC legal status


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2016-01-29 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20151231

2015-12-23 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20150421

2015-12-15 [REG SE EUG] EUROPEAN PATENT HAS LAPSED

2015-11-30 [REG CH PL] PATENT CEASED

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2010-11-12 [REG FR CD] CHANGE OF NAME OR COMPANY NAME

2008-01-23 [REG GB 732E] AMENDMENTS TO THE REGISTER IN RESPECT OF CHANGES OF NAME OR CHANGES AFFECTING RIGHTS (SECT. 32/1977)

2007-02-28 [REG CH PUE] ASSIGNMENT

- Owner name: OERLIKON TRADING AG, TRUEBBACH

- Free text: OC OERLIKON BALZERS AG#PATENTABTEILUNG POSTFACH 1000#9496 BALZERS (LI) -TRANSFER TO- OERLIKON TRADING AG, TRUEBBACH#HAUPTSTRASSE#9477 TRUEBBACH (CH)

2006-10-31 [REG CH PFA] NAME/FIRM CHANGED

- Owner name: OC OERLIKON BALZERS AG

- Free text: UNAXIS BALZERS AKTIENGESELLSCHAFT# #9496 BALZERS (LI) -TRANSFER TO- OC OERLIKON BALZERS AG#PATENTABTEILUNG POSTFACH 1000#9496 BALZERS (LI)

2004-06-23 [26N] NO OPPOSITION FILED

- Effective date: 20040405

2004-04-30 [ET] FR: TRANSLATION FILED

2003-11-12 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20031018

2003-10-21 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2003-08-07 [REF] CORRESPONDS TO:

- Document: DE 59808931 P 20030807

2003-07-15 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2003-07-02 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): CH DE FR GB LI SE

2003-07-02 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2003-01-02 [RTI1] TITLE (CORRECTION)

- Free text: METHOD FOR REMOVING A HARD MATERIAL LAYER DEPOSITED ON A HARD METAL WORK PIECE

2002-05-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020318

2001-03-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000808

2001-03-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): CH DE FR GB LI SE