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Extract from the Register of European Patents

EP About this file: EP1039095

EP1039095 - Downhole drill bit [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  24.03.2006
Database last updated on 16.11.2024
Most recent event   Tooltip24.03.2006No opposition filed within time limitpublished on 10.05.2006  [2006/19]
Applicant(s)For all designated states
Diamond Products International, Inc.
15955 W. Hardy, Suite 300 Houston
Texas 77060 / US
[N/P]
Former [2001/13]For all designated states
Diamond Products International, Inc.
15955 W. Hardy, Suite 300
Houston, Texas 77060 / US
Former [2001/11]For all designated states
Diamond Productions International, Inc.
15955 W. Hardy, Suite 300
Houston, Texas 77060 / US
Former [2000/39]For all designated states
Diamond Products International, Inc.
15955 W. Hardy, Suite 300
Houston, Texas 77060 / US
Inventor(s)01 / Fielder, Coy M.
13006 Marron Drive
Cypress, Texas 77429 / US
02 / Silva, Rogerio H.
17930 Seven Pines
Spring, Texas 77379 / US
[2000/39]
Representative(s)Frankland, Nigel Howard, et al
FORRESTER & BOEHMERT Pettenkoferstrasse 20-22
80336 München / DE
[N/P]
Former [2000/39]Frankland, Nigel Howard, et al
FORRESTER & BOEHMERT Franz-Joseph-Strasse 38
80801 München / DE
Application number, filing date00302231.620.03.2000
[2000/39]
Priority number, dateUS1999012511919.03.1999         Original published format: US 125119
[2000/39]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1039095
Date:27.09.2000
Language:EN
[2000/39]
Type: A3 Search report 
No.:EP1039095
Date:11.04.2001
[2001/15]
Type: B1 Patent specification 
No.:EP1039095
Date:18.05.2005
Language:EN
[2005/20]
Search report(s)(Supplementary) European search report - dispatched on:EP20.02.2001
ClassificationIPC:E21B10/26, E21B10/56
[2001/03]
CPC:
E21B10/265 (EP,US)
Former IPC [2000/39]E21B10/26
Designated contracting statesDE,   GB,   IT [2002/01]
Former [2000/39]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Bohrmeissel[2000/39]
English:Downhole drill bit[2000/39]
French:Trépan de forage[2000/39]
Examination procedure14.09.2001Examination requested  [2001/46]
16.03.2004Despatch of a communication from the examining division (Time limit: M04)
02.06.2004Reply to a communication from the examining division
12.11.2004Communication of intention to grant the patent
17.03.2005Fee for grant paid
17.03.2005Fee for publishing/printing paid
Opposition(s)21.02.2006No opposition filed within time limit [2006/19]
Fees paidRenewal fee
13.03.2002Renewal fee patent year 03
11.03.2003Renewal fee patent year 04
15.03.2004Renewal fee patent year 05
14.03.2005Renewal fee patent year 06
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Documents cited:Search[A]FR1249499  (EUROP DE TURBOFORAGE SOC) [A] 1 * figure 1 *;
 [XY]EP0058061  (DRILLING & SERVICE UK LTD [GB]) [X] 1,2,4,5,8 * page 9, paragraph 3 - page 11, paragraph 1; figures 3,5-7 * [Y] 3,7;
 [A]US5678644  (FIELDER COY [US]) [A] 1 * figures 1-10 *;
 [Y]GB2317632  (SMITH INTERNATIONAL [US]) [Y] 3,7 * claim 14 *;
 [A]US5765653  (DOSTER MICHAEL L [US], et al) [A] 1 * figures 6,7 *;
 [A]  - CSONKA, G. ET AL., "Ream While Drilling Technology Applied Succesfully Offshore Australia", SPE36990, Adelaide, (19961028), pages 271 - 278, XP002153941 [A] 1 * figure 3 *
 [A]  - ROTHE J R ET AL, "REAM-WHILE-DRILLING TOOL CUTS COSTS OF THREE VENEZUELAN WELLS", OIL AND GAS JOURNAL,US,PENNWELL PUBLISHING CO. TULSA, (19970113), vol. 95, no. 2, ISSN 0030-1388, pages 33 - 34,36,38-40, XP000685109 [A] 1 * figures 1,2 *
 [T]  - "Hughes Christensen's Drill Out RWD tool", INTERNET ARTICLE, URL: http://www.bakerhughes.com/hcc/holeopen/dosrwd.htm, (20001128), XP002154028
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.