Global Patent Index - EP 0845576 B1

EP 0845576 B1 2003-06-04 - Drill string

Title (en)

Drill string

Title (de)

Bohrgestänge

Title (fr)

Tige de forage

Publication

EP 0845576 B1 (DE)

Application

EP 97111050 A

Priority

DE 19649572 A

Abstract (en)

[origin: EP0845576A2] The borer comprises a multi section structure with a boring head to drive the bore to the target point. The boring head is fitted with a grip, attached via a swivel mounting to pull the pipeline back to the start position. The boring head widens the bore during the retraction process and clears debris from the bore. The boring sections are gripped by a chuck to pull each section back to the start point. The swivel grip ensures a low friction drag for the pipeline with reduced risk of damage. The chuck is operated by a polygonal drive for rapid deployment.

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

E21B 7/20; E21B 7/06; E21B 19/08

IPC 8 full level (invention and additional information)

E21B 7/28 (2006.01); E21B 17/07 (2006.01)

CPC (invention and additional information)

E21B 7/28 (2013.01); E21B 17/07 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT NL

EPO simple patent family

EP 0845576 A2 19980603; EP 0845576 A3 19990512; EP 0845576 B1 20030604; DE 19649572 A1 19980604; DE 19649572 C2 19991104

INPADOC legal status


2013-09-26 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 59710213

- Effective date: 20130201

2013-04-30 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

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

- Effective date: 20130201

2013-04-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

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

- Effective date: 20120731

2013-04-26 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20130329

2011-11-30 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20110926

- Year of fee payment: 15

2011-10-31 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20110729

- Year of fee payment: 15

2005-06-24 [REG FR TQ] PARTIAL TRANSMISSION OF PROPERTY

2004-05-26 [26N] NO OPPOSITION FILED

- Effective date: 20040305

2004-04-16 [ET] FR: TRANSLATION FILED

2003-12-03 [GBV] GB: EP PATENT (UK) TREATED AS ALWAYS HAVING BEEN VOID IN ACCORDANCE WITH GB SECTION 77(7)/1977

- Effective date: 20030604

2003-11-03 [NLV1] NL: LAPSED OR ANNULLED DUE TO FAILURE TO FULFILL THE REQUIREMENTS OF ART. 29P AND 29M OF THE PATENTS ACT

2003-09-15 [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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20030915

2003-07-10 [REF] CORRESPONDS TO:

- Document: DE 59710213 P 20030710

2003-06-04 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): DE ES FR GB IT NL

2003-06-04 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2003-06-04 [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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20030604

2003-06-04 [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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20030604

2003-06-04 [PG25 NL] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: NL

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20030604

2002-11-20 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: DOLL FAHRZEUGBAU GMBH

2002-11-20 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: GAZ DE FRANCE

2002-11-20 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: FLOWTEX FRANCE

2002-11-13 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: DOLL FAHRZEUGBAU GMBH

2002-11-13 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: KRIEGER, DORIS

2002-08-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020716

2000-01-19 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE ES FR GB IT NL

1999-07-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990430

1999-06-09 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: KRIEGER, DORIS

1999-06-09 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: KRIEGER, DORIS

1999-05-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

1999-05-12 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;RO;SI

1999-05-12 [RHK1] MAIN CLASSIFICATION (CORRECTION)

- IPC: E21B 7/20

1998-06-03 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE ES FR GB IT NL

1998-06-03 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;RO;SI