Global Patent Index - EP 0912264 B1

EP 0912264 B1 2000-02-02 - PROCESS FOR MANUFACTURE OF PRECISION STEEL TUBES

Title (en)

PROCESS FOR MANUFACTURE OF PRECISION STEEL TUBES

Title (de)

VERFAHREN ZUR HERSTELLUNG VON PRÄZISIONSSTAHLROHREN

Title (fr)

PROCEDE POUR FABRIQUER DES TUBES DE PRECISION EN ACIER

Publication

EP 0912264 B1 (DE)

Application

EP 97932754 A

Priority

  • DE 9701452 W
  • DE 19628714 A

Abstract (en)

[origin: DE19628714C1] The invention relates to a process for the manufacture of precision steel tubes by cold forming of tube blanks, in particular in a plurality of forming stages, with or without an internal tool. A tube blank of interstitial-free steel (IF) is used as the starting material.

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

B21C 1/00; C21D 8/10

IPC 8 full level (invention and additional information)

B21C 1/22 (2006.01); C22C 38/00 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01)

CPC (invention and additional information)

C22C 38/001 (2013.01); B21C 1/22 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19628714 C1 19971204; EP 0912264 A1 19990506; EP 0912264 B1 20000202; US 6290788 B1 20010918; WO 9801242 A1 19980115

INPADOC legal status


2016-05-31 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2016-04-29 [REG FR ST] NOTIFICATION OF LAPSE

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2016-03-23 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20150704

2016-02-02 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 59701097

2014-12-31 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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

2001-01-17 [26N] NO OPPOSITION FILED

2000-03-21 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: GUZZI E RAVIZZA S.R.L.

2000-03-09 [REF] CORRESPONDS TO:

- Document: DE 59701097 20000309

2000-02-23 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20000202

2000-02-11 [ET] FR: TRANSLATION FILED

2000-02-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB IT

1999-08-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990617

1999-05-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19981222

1999-05-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT