Global Patent Index - EP 0817341 B1

EP 0817341 B1 2000-09-06 - Spark plug

Title (en)

Spark plug

Title (de)

Zündkerze

Title (fr)

Bougie d'allumage

Publication

EP 0817341 B1 (EN)

Application

EP 97110583 A

Priority

  • JP 18834796 A
  • JP 33511996 A

Abstract (en)

[origin: EP0817341A1] Spark plug has a central electrode, an insulator provided exterior to the central electrode, main metallic shell provided exterior to the insulator in such a way that the central electrode protrudes from one end, and a ground electrode coupled at one end to the main metallic shell and which has the other end disposed to face the central electrode 3, with a chip being secured to either the central electrode or the ground electrode or both to form spark discharge gap g. The chip is made of a metal based on Ir which contains Rh in an amount ranging from 3 to 50 wt% (50 wt% being not inclusive). <IMAGE>

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

H01T 13/39

IPC 8 full level (invention and additional information)

F02P 13/00 (2006.01); C22C 5/04 (2006.01); H01T 13/39 (2006.01); H01T 21/02 (2006.01)

CPC (invention and additional information)

H01T 21/02 (2013.01); H01T 13/39 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 0817341 A1 19980107; EP 0817341 B1 20000906; EP 0817341 B2 20031210; CN 1059293 C 20001206; CN 1170980 A 19980121; DE 69703011 D1 20001012; DE 69703011 T2 20010111; DE 69703011 T3 20040527; EP 0975075 A2 20000126; EP 0975075 A3 20000202; JP 3461670 B2 20031027; JP H1074575 A 19980317

INPADOC legal status


2016-08-31 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20160516

- Year of fee payment: 20

2016-07-29 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20160622

- Year of fee payment: 20

2016-05-16 [REG FR PLFP] FEE PAYMENT

- Ref Country Code: FR

- Year of fee payment: 20

2009-09-30 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20070627

2007-02-28 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20060627

2006-06-30 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Payment date: 20060630

- Year of fee payment: 10

2006-06-27 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060627

2005-06-22 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20050622

- Year of fee payment: 9

2004-10-08 [ET3] FR: TRANSLATION FILED ** DECISION CONCERNING OPPOSITION

2003-12-10 [27A] MAINTAINED AS AMENDED

- Effective date: 20031210

2003-12-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B2

- Designated State(s): DE FR GB IT

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-08-01 [26] OPPOSITION FILED

- Opponent name: DENSO CORPORATION

- Effective date: 20010605

2000-12-01 [ET] FR: TRANSLATION FILED

2000-11-29 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

2000-10-12 [REF] CORRESPONDS TO:

- Document: DE 69703011 20001012

2000-09-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB IT

1998-09-16 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB IT

1998-09-16 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE FR GB IT

1998-04-15 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19980303

1998-03-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980115

1998-01-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT