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Extract from the Register of European Patents

EP About this file: EP1220971

EP1220971 - BUSHING FOR A DRILLING RIG [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  17.09.2004
Database last updated on 31.08.2024
Most recent event   Tooltip20.06.2008Change - representativepublished on 23.07.2008  [2008/30]
Applicant(s)For all designated states
Weatherford/Lamb, Inc.
515 Post Oak Blvd., Suite 600 Houston
Texas 77027 / US
[N/P]
Former [2002/28]For all designated states
WEATHERFORD/LAMB, INC.
515 Post Oak Blvd., Suite 600
Houston Texas 77027 / US
Inventor(s)01 / JÄNSCH, Manfred
Moorkamp 25
30826 Garbsen / DE
 [2002/28]
Representative(s)Lind, Robert
Marks & Clerk LLP
2nd Floor, Wytham Court
11 West Way
Oxford OX2 0JB / GB
[N/P]
Former [2008/30]Lind, Robert
Marks & Clerk 4220 Nash Court Oxford Business Park South Oxford
OX4 2RU / GB
Former [2002/28]Lind, Robert
Marks & Clerk, 4220 Nash Court, Oxford Business Park South
Oxford OX2 6LU / GB
Application number, filing date00962719.125.09.2000
[2002/28]
WO2000GB03666
Priority number, dateGB1999002355406.10.1999         Original published format: GB 9923554
[2002/28]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO0125592
Date:12.04.2001
Language:EN
[2001/15]
Type: A1 Application with search report 
No.:EP1220971
Date:10.07.2002
Language:EN
The application published by WIPO in one of the EPO official languages on 12.04.2001 takes the place of the publication of the European patent application.
[2002/28]
Type: B1 Patent specification 
No.:EP1220971
Date:12.11.2003
Language:EN
[2003/46]
Search report(s)International search report - published on:EP12.04.2001
ClassificationIPC:E21B19/10, E21B33/04
[2002/28]
CPC:
E21B19/10 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL [2003/46]
Former [2002/28]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:BUCHSE FÜR EINE BOHRANLAGE[2002/28]
English:BUSHING FOR A DRILLING RIG[2002/28]
French:DOUILLE POUR APPAREIL DE FORAGE[2002/28]
Entry into regional phase17.04.2002National basic fee paid 
17.04.2002Designation fee(s) paid 
17.04.2002Examination fee paid 
Examination procedure19.04.2001Request for preliminary examination filed
International Preliminary Examining Authority: EP
17.04.2002Examination requested  [2002/28]
12.11.2002Despatch of a communication from the examining division (Time limit: M04)
24.03.2003Reply to a communication from the examining division
19.05.2003Communication of intention to grant the patent
22.07.2003Fee for grant paid
22.07.2003Fee for publishing/printing paid
Opposition(s)13.08.2004No opposition filed within time limit [2004/45]
Fees paidRenewal fee
12.09.2002Renewal fee patent year 03
12.09.2003Renewal fee patent year 04
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Cited inInternational search[A]US1400940  (CLARKE CLEM S) [A] 1,9,11,12 * the whole document *;
 [A]US2607098  (HART WILSON JOHN);
 [A]US3571865  (JOHNSON NOAL E);
 [A]US4152015  (COHEN JOHN H [US], et al) [A] 1,11 * abstract *;
 [A]US4203182  (BOYADJIEFF GEORGE I [US], et al) [A] 1 * figure - *;
 [A]US4253219  (KRASNOV IGOR) [A] 1,9,11,12 * the whole document *;
 [A]US4306339  (WARD JOHN F);
 [A]US4355443  (BLACKWELL HENRY W);
 [A]US4823919  (HAYATDAVOUDI ASADOALLAH [US]);
 [A]EP0359355  (CAMERON IRON WORKS INC [US]);
 [A]US5544706  (REED LEHMAN T [US]) [A] 1,9,11,12 * abstract *;
 [A]US5848647  (WEBRE MIKE [US], et al) [A] 1,11 * abstract *;
 [PA]WO0009853  (HYDRIL CO [US]) [PA] 1-5,9-12 * the whole document *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.