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Extract from the Register of European Patents

EP About this file: EP1275815

EP1275815 - Drill Bit Having Adjustable Total Flow Area [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.02.2008
Database last updated on 20.12.2024
Most recent event   Tooltip08.02.2008No opposition filed within time limitpublished on 12.03.2008  [2008/11]
Applicant(s)For all designated states
Smith International, Inc.
16740 Hardy Street
Houston, Texas 77032 / US
[N/P]
Former [2007/14]For all designated states
SMITH INTERNATIONAL, INC.
16740 Hardy Street Houston
Texas 77032 / US
Former [2003/03]For all designated states
SMITH INTERNATIONAL, INC.
16740 Hardy Street
Houston, Texas 77032 / US
Inventor(s)01 / Kristiansen, Steffen S.
Lagaardsveien 17
Stavanger / NO
02 / Azar, Michael G.
223 Wisteria Walk Circle
77381, The Woodlands / US
03 / Zhang, John Youhe
11703 Hillsgate Court
Tomball 77375 TX / US
 [2003/03]
Representative(s)Brykman, Georges, et al
Osha Liang
32 Avenue de l'Opéra
75002 Paris / FR
[N/P]
Former [2007/37]Brykman, Georges, et al
Osha Liang 121, Avenue des Champs Élysées
75008 Paris / FR
Former [2003/03]Weihs, Bruno
Rosenthal & Osha S.A.R.L. 121, avenue des Champs Elysées
75008 Paris / FR
Application number, filing date02102015.109.07.2002
[2003/03]
Priority number, dateUS20010304555P11.07.2001         Original published format: US 304555 P
US2002013645901.05.2002         Original published format: US 136459
[2003/03]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP1275815
Date:15.01.2003
Language:EN
[2003/03]
Type: B1 Patent specification 
No.:EP1275815
Date:04.04.2007
Language:EN
[2007/14]
Search report(s)(Supplementary) European search report - dispatched on:EP08.11.2002
ClassificationIPC:E21B10/60, E21B21/10
[2003/03]
CPC:
E21B10/61 (EP,US); E21B21/10 (EP,US)
Designated contracting statesBE,   GB [2003/40]
Former [2003/03]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE,  SK,  TR 
TitleGerman:Bohrmeissel mit veränderbarem Gesamtdurchflussquerschnitt[2003/03]
English:Drill Bit Having Adjustable Total Flow Area[2003/03]
French:Trépan de forage à section d'écoulement réglable[2003/03]
Examination procedure17.04.2003Examination requested  [2003/25]
28.02.2005Despatch of a communication from the examining division (Time limit: M06)
06.07.2005Reply to a communication from the examining division
06.10.2005Despatch of a communication from the examining division (Time limit: M04)
03.02.2006Reply to a communication from the examining division
24.02.2006Despatch of a communication from the examining division (Time limit: M04)
22.06.2006Reply to a communication from the examining division
27.11.2006Communication of intention to grant the patent
21.02.2007Fee for grant paid
21.02.2007Fee for publishing/printing paid
Opposition(s)07.01.2008No opposition filed within time limit [2008/11]
Fees paidRenewal fee
22.07.2004Renewal fee patent year 03
20.07.2005Renewal fee patent year 04
27.07.2006Renewal 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[X]US3213949  (KISTLER JR WILLIAM A) [X] 1,2,10,11 * column 2, line 27 - line 31 *;
 [Y]US3645346  (MILLER JAMES F, et al) [Y] 3,8,14 * column 4, line 15 - line 30 *;
 [X]US3645331  (MAURER WILLIAM C, et al) [X] 1,3,8-10,14 * column 5, line 7 - line 30 *;
 [XY]US5934389  (RAMSEY MARK S [US], et al) [X] 1,2,4,10,11,15 * column 3, line 7 - line 14 * [Y] 3,8,14;
 [A]JP2000120364  (KOKUDO SOGO KENSETSU KK) [A] 1,5-7,13,16,18* paragraph [0009] - paragraph [0010] *
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.