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EP0380909
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EP About this file: EP0380909
| EP0380909 - Method and coring apparatus for subterranean rock drilling [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 20.12.1994 Database last updated on 12.11.2024 | Most recent event Tooltip | 20.12.1994 | Withdrawal of application | published on 08.02.1995 [1995/06] | Applicant(s) | For all designated states Eastman Teleco Company 15355 Vantage Parkway West Suite 300 Houston, Texas 77032-1925 / US | [N/P] |
| Former [1993/02] | For all designated states Eastman Teleco Company 15355 Vantage Parkway West Suite 300 Houston, Texas 77032-1925 / US | ||
| Former [1990/32] | For all designated states Eastman Christensen Company 1937 South 300 West Salt Lake City Utah 84115 / US | Inventor(s) | 01 /
Jürgens, Rainer, Dr. Ing. Osterloher Landstrasse 20 D-3100 Celle / DE | 02 /
van Es, Johann 133 Spruce Bend 22430 TWP RD 520 Sherwood Park / CA | [1990/32] | Representative(s) | Busse & Busse Patent- und Rechtsanwälte Partnerschaft Postfach 12 26 49002 Osnabrück / DE | [N/P] |
| Former [1990/32] | Busse & Busse Patentanwälte Postfach 12 26 D-49002 Osnabrück / DE | Application number, filing date | 90100111.5 | 04.01.1990 | [1990/32] | Priority number, date | DE19893902869 | 01.02.1989 Original published format: DE 3902869 | [1990/32] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0380909 | Date: | 08.08.1990 | Language: | DE | [1990/32] | Type: | A3 Search report | No.: | EP0380909 | Date: | 11.03.1992 | Language: | DE | [1992/11] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 24.01.1992 | Classification | IPC: | E21B7/06, E21B25/04, E21B25/16, E21B4/02 | [1990/32] | CPC: |
E21B25/04 (EP,US);
E21B25/16 (EP,US);
E21B4/02 (EP,US);
E21B7/061 (EP,US);
E21B7/068 (EP,US)
| Designated contracting states | BE, FR, GB, NL [1990/32] | Title | German: | Verfahren und Kernbohrwerkzeug zum Abteufen von Bohrungen in unterirdische Gesteinsformationen | [1990/32] | English: | Method and coring apparatus for subterranean rock drilling | [1990/32] | French: | Procédé et outil de carottage pour le forage de formations rocheuses souterraines | [1990/32] | File destroyed: | 03.03.2001 | Examination procedure | 27.08.1992 | Examination requested [1992/43] | 23.07.1993 | Despatch of a communication from the examining division (Time limit: M06) | 17.01.1994 | Reply to a communication from the examining division | 10.06.1994 | Despatch of a communication from the examining division (Time limit: M06) | 14.12.1994 | Application withdrawn by applicant [1995/06] | Fees paid | Renewal fee | 17.12.1991 | Renewal fee patent year 03 | 14.12.1992 | Renewal fee patent year 04 | 22.12.1993 | Renewal fee patent year 05 |
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| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Documents cited: | Search | [YD]EP0276724 (EASTMAN CHRISTENSEN CO [US]); | [Y]DE568941 (BATAAFSCHE PETROLEUM); | [A]US2571644 (ZUBLIN JOHN A); | [A]DE1181149 (SVENSKA DIAMANTBERGBORRNINGS A); | [A]DE1094687 (TIEFBOHR MESS DIENST LEUTERT U) |