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Extract from the Register of European Patents

EP About this file: EP0646810

EP0646810 - Measurement of dielectric properties of fluids in a well [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  09.01.1998
Database last updated on 12.07.2024
Most recent event   Tooltip09.01.1998Application deemed to be withdrawnpublished on 25.02.1998 [1998/09]
Applicant(s)For all designated states
HALLIBURTON COMPANY
P.O. Drawer 1431 Duncan
Oklahoma 73536 / US
[N/P]
Former [1995/14]For all designated states
HALLIBURTON COMPANY
P.O. Drawer 1431
Duncan Oklahoma 73536 / US
Inventor(s)01 / Sinclair, Paul L.
1202 Ivy
Clear Lake Shores, Texas 77565 / US
02 / Su, Shey-Min
6303 Smith Oak
Austin, Texas 78749 / US
03 / Gianzero, Stanley C.
34 Sundown Parkway
Austin, Texas 78746 / US
[1995/14]
Representative(s)Wain, Christopher Paul, et al
A.A. Thornton & Co. 235 High Holborn London
WC1V 7LE / GB
[N/P]
Former [1995/14]Wain, Christopher Paul, et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE / GB
Application number, filing date94301091.816.02.1994
[1995/14]
Priority number, dateUS1993013107701.10.1993         Original published format: US 131077
[1995/14]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0646810
Date:05.04.1995
Language:EN
[1995/14]
Type: A3 Search report 
No.:EP0646810
Date:23.08.1995
Language:EN
[1995/34]
Search report(s)(Supplementary) European search report - dispatched on:EP04.07.1994
ClassificationIPC:G01V3/30, G01V3/18
[1995/34]
CPC:
G01V3/30 (EP,US); Y02A90/30 (EP,US)
Former IPC [1995/14]G01V3/30
Designated contracting statesDE,   FR,   GB,   IT,   NL [1995/14]
TitleGerman:Messung der dielektrischen Eigenschaften von Bohrlochflüssigkeiten[1995/14]
English:Measurement of dielectric properties of fluids in a well[1995/14]
French:Mesure des propriétés diélectriques des fluides dans un puits[1995/14]
Examination procedure17.10.1995Examination requested  [1995/50]
15.04.1997Despatch of a communication from the examining division (Time limit: M04)
26.08.1997Application deemed to be withdrawn, date of legal effect  [1998/09]
23.09.1997Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1998/09]
Fees paidRenewal fee
08.02.1996Renewal fee patent year 03
10.02.1997Renewal fee patent year 04
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Documents cited:Search[XY]USRE32913E  (B. CLARK) [X] 1,5,6,9,10 * column 6, line 45 - column 7, line 8 * [Y] 2-4,7,8;
 [Y]EP0314573  (SCHLUMBERGER LTD [US], et al) [Y] 2-4,7,8 * page 10, line 13 - line 23 *;
 [A]US4441362  (CARLSON NORMAN R [US]) [A] 1 * column 2, line 67 - column 3, line 8 * * column 9, line 13 - line 26 *
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.