Global Patent Index - EP 0343012 B2

EP 0343012 B2 2002-09-18 - Magnesium-calcium alloys for debismuthizing lead

Title (en)

Magnesium-calcium alloys for debismuthizing lead

Title (de)

Magnesium-Calcium-Legierungen zur Entwismutierung von Blei

Title (fr)

Alliages de magnésium-calcium pour la débismuthation du plomb

Publication

EP 0343012 B2 (EN)

Application

EP 89305122 A

Priority

CA 567408 A

Abstract (en)

[origin: EP0343012A2] A novel alloy for use in lead refining is disclosed which comprises magnesium and calcium. The preferred ratio on a weight basis of magnesium to calcium is between 1.2 and 5.2. A method of adding this alloy to a lead bath is described which brings calcium into solution with the lead and provides a high recovery ratio.

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

C22B 13/08

IPC 8 full level (invention and additional information)

C22B 13/02 (2006.01); C22B 9/10 (2006.01); C22B 13/06 (2006.01); C22C 23/00 (2006.01)

CPC (invention and additional information)

C22B 13/06 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FR GB GR IT SE

EPO simple patent family

EP 0343012 A2 19891123; EP 0343012 A3 19910109; EP 0343012 B1 19950913; EP 0343012 B2 20020918; AT 127859 T 19950915; AU 2451588 A 19891123; AU 620822 B2 19920227; DE 68924194 D1 19951019; DE 68924194 T2 19961128; DE 68924194 T3 20030130; ES 2076961 T3 19951116; GR 3018160 T3 19960229; JP 2714984 B2 19980216; JP H0270038 A 19900308; YU 102489 A 19911031

INPADOC legal status


2009-11-30 [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 EXPIRATION OF PROTECTION

- Effective date: 20090518

2009-07-14 [EUG] SE: EUROPEAN PATENT HAS LAPSED

2009-06-10 [REG GB PE20] PATENT EXPIRED AFTER TERMINATION OF 20 YEARS

- Expiry date: 20090518

2009-05-31 [BE20] BE: PATENT EXPIRED

- Owner name: *TIMMINCO LTD

- Effective date: 20090519

2008-12-31 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20080407

- Year of fee payment: 20

2008-11-28 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20080409

- Year of fee payment: 20

2008-10-31 [PGFP SE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: SE

- Payment date: 20080519

- Year of fee payment: 20

2008-09-30 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Payment date: 20080510

- Year of fee payment: 20

2008-09-30 [PGFP BE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: BE

- Payment date: 20080428

- Year of fee payment: 20

2008-07-31 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20080529

- Year of fee payment: 20

2003-05-16 [REG ES FD2A] ANNOUNCEMENT OF LAPSE IN SPAIN

- Effective date: 20030303

2003-02-07 [ET3] FR: TRANSLATION FILED ** DECISION CONCERNING OPPOSITION

2002-09-18 [27A] MAINTAINED AS AMENDED

- Effective date: 20020918

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B2

- Designated State(s): AT BE DE ES FR GB GR IT SE

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

2001-05-31 [PG25 GR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GR

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

- Effective date: 20010531

2001-05-21 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

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

- Effective date: 20010521

2000-05-18 [PGFP ES] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: ES

- Payment date: 20000518

- Year of fee payment: 12

2000-04-14 [PGFP GR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GR

- Payment date: 20000414

- Year of fee payment: 12

1996-08-07 [26] OPPOSITION FILED

- Opponent name: PECHINEY SERVICE BREVETS

- Effective date: 19960612

1996-01-31 [REG GR FG4A] VALIDATION IN GREECE

- Free text: 3018160

1995-11-16 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2076961 T3

1995-11-03 [ET] FR: TRANSLATION FILED

1995-10-19 [REF] CORRESPONDS TO:

- Document: DE 68924194 19951019

1995-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT BE DE ES FR GB GR IT SE

1995-09-13 [PG25 AT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: AT

- Effective date: 19950913

1995-09-13 [REF] CORRESPONDS TO:

- Document: AT 127859 T 19950915

1995-08-17 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: STUDIO AVV. LIA STELLA

1992-05-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19920325

1991-05-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19910403

1991-01-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE DE ES FR GB GR IT SE

1989-11-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE DE ES FR GB GR IT SE