Global Patent Index - EP 0977002 A3

EP 0977002 A3 2000-03-29 - Gun barrel with a wear reducing hard chromium layer

Title (en)

Gun barrel with a wear reducing hard chromium layer

Title (de)

Waffenrohr mit einer verschleissmindernden Hartchromschicht

Title (fr)

Tube de canon muni d'une couche de chrome dur pour réduire l'usure

Publication

EP 0977002 A3 (DE)

Application

EP 99110786 A

Priority

DE 19834394 A

Abstract (en)

[origin: EP0977002A2] The cross-sectional surface of the hard chrome layer (3) contains at least 500 cracks (6) per cm and on the surface of the hard chrome layer there are at least 150 cracks per cm.

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

F41A 21/22

IPC 8 full level (invention and additional information)

F41A 21/04 (2006.01); C25D 3/04 (2006.01)

CPC (invention and additional information)

F41A 21/04 (2013.01); C25D 3/04 (2013.01); Y10T 428/12632 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0977002 A2 20000202; EP 0977002 A3 20000329; EP 0977002 B1 20021127; DE 19834394 A1 20000203; ES 2185270 T3 20030416; US 2001029689 A1 20011018; US 2002095846 A1 20020725; US 6381893 B2 20020507; US 6701656 B2 20040309

INPADOC legal status


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2008-02-19 [EUG] SE: EUROPEAN PATENT HAS LAPSED

2008-02-15 [REG CH PL] PATENT CEASED

2007-10-30 [REG CH PFA] NAME/FIRM CHANGED

- Owner name: RHEINMETALL W & M GMBH

- Free text: RHEINMETALL W & M GMBH#HEINRICH-EHRHARDT-STRASSE 2#29345 UNTERLUESS (DE) -TRANSFER TO- RHEINMETALL W & M GMBH#HEINRICH-EHRHARDT-STRASSE 2#29345 UNTERLUESS (DE)

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2003-04-16 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2185270 T3

2003-04-16 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20030325

2003-04-04 [ET] FR: TRANSLATION FILED

2003-01-09 [REF] CORRESPONDS TO:

- Document: DE 59903519 20030109

2002-12-13 [REG CH NV] NEW AGENT

- Representative's name: E. BLUM & CO. PATENTANWAELTE

2002-11-29 [REG CH EP] ENTRY IN THE NATIONAL PHASE

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