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Extract from the Register of European Patents

EP About this file: EP0256538

EP0256538 - Compositions and a process for preparing water dispersible polymers [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  24.06.1995
Database last updated on 02.09.2024
Most recent event   Tooltip24.06.1995No opposition filed within time limitpublished on 16.08.1995 [1995/33]
Applicant(s)For all designated states
Phillips Petroleum Company
5th and Keeler Bartlesville
Oklahoma 74004 / US
[N/P]
Former [1988/08]For all designated states
PHILLIPS PETROLEUM COMPANY
5th and Keeler
Bartlesville Oklahoma 74004 / US
Inventor(s)01 / Bishop, Marshall Dean
315 SE Ridgecrest Ct.
Bartlesville, OK 74006 / US
[1988/08]
Representative(s)Geissler, Bernhard, et al
Bardehle Pagenberg Partnerschaft mbB
Patentanwälte, Rechtsanwälte
Postfach 86 06 20
81633 München / DE
[N/P]
Former [1988/08]Geissler, Bernhard, Dr. jur., Dipl.-Phys., et al
Patent- und Rechtsanwälte Bardehle . Pagenberg . Dost . Altenburg . Frohwitter . Geissler & Partner Postfach 86 06 20
D-81633 München / DE
Application number, filing date87111825.314.08.1987
[1988/08]
Priority number, dateUS1986089749018.08.1986         Original published format: US 897490
[1988/08]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0256538
Date:24.02.1988
Language:EN
[1988/08]
Type: A3 Search report 
No.:EP0256538
Date:22.02.1989
Language:EN
[1989/08]
Type: B1 Patent specification 
No.:EP0256538
Date:24.08.1994
Language:EN
[1994/34]
Search report(s)(Supplementary) European search report - dispatched on:EP06.01.1989
ClassificationIPC:C08K3/36, C08L1/26, C08L3/04, C08L5/00, C08L57/00, C08J3/02
[1994/34]
CPC:
C08J3/05 (EP,US); C08K3/36 (EP,US); C08K9/04 (EP,US);
C09K8/04 (EP,US); C08J2300/10 (EP,US)
Former IPC [1988/08]C08K3/36, C08L1/26, C08L3/04, C08L5/00, C08L57/00, C08J3/06
Designated contracting statesDE,   FR,   GB,   IT,   NL [1988/08]
TitleGerman:Zusammensetzungen und Verfahren zur Herstellung von wasserdispergierbaren Polymeren[1988/08]
English:Compositions and a process for preparing water dispersible polymers[1988/08]
French:Compositions et procédé de préparation de polymères dispersables dans l'eau[1988/08]
Examination procedure24.07.1989Examination requested  [1989/38]
03.02.1992Despatch of a communication from the examining division (Time limit: M06)
13.08.1992Reply to a communication from the examining division
19.02.1993Despatch of a communication from the examining division (Time limit: M04)
06.04.1993Reply to a communication from the examining division
01.09.1993Despatch of communication of intention to grant (Approval: No)
22.12.1993Despatch of communication of intention to grant (Approval: later approval)
04.01.1994Communication of intention to grant the patent
16.03.1994Fee for grant paid
16.03.1994Fee for publishing/printing paid
Opposition(s)25.05.1995No opposition filed within time limit [1995/33]
Fees paidRenewal fee
18.07.1989Renewal fee patent year 03
19.07.1990Renewal fee patent year 04
02.01.1991Renewal fee patent year 05
03.11.1992Renewal fee patent year 06
23.07.1993Renewal fee patent year 07
26.07.1994Renewal fee patent year 08
Penalty fee
Additional fee for renewal fee
31.08.199206   M06   Fee paid on   03.11.1992
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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[A]FR2252377  (DU PONT [US]);
 [A]FR2482118  (MERCK & CO INC [US])
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.