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Extract from the Register of European Patents

EP About this file: EP0131724

EP0131724 - Woven diaphragm for aqueous electrolytes [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.06.1989
Database last updated on 26.04.2025
Most recent event   Tooltip23.06.1989No opposition filed within time limitpublished on 09.08.1989 [1989/32]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
For all designated states
C. Cramer & Co., Weberei
Postfach 209
D-4431 Heek-Nienborg / DE
[N/P]
Former [1985/04]For all designated states
BAYER AG
D-51368 Leverkusen / DE
For all designated states
C. Cramer & Co., Weberei
Postfach 209
D-4431 Heek-Nienborg / DE
Inventor(s)01 / Klotz, Helmut, Dr.
Pappelweg 1
D-5060 Bergisch-Gladbach 2 / DE
02 / Bloch, Klaus
Schwalbenweg 17
D-5205 St. Augustin-Niederpleis / DE
[1985/04]
Application number, filing date84106154.230.05.1984
[1985/04]
Priority number, dateDE1983332115911.06.1983         Original published format: DE 3321159
[1985/04]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0131724
Date:23.01.1985
Language:DE
[1985/04]
Type: A3 Search report 
No.:EP0131724
Date:22.10.1986
Language:DE
[1986/43]
Type: B1 Patent specification 
No.:EP0131724
Date:10.08.1988
Language:DE
[1988/32]
Search report(s)(Supplementary) European search report - dispatched on:EP02.09.1986
ClassificationIPC:C25B13/00
[1985/04]
CPC:
C25B13/00 (EP,US)
Designated contracting statesBE,   DE,   FR,   IT [1985/04]
TitleGerman:Gewebtes Diaphragma für wässrige Elektrolyte[1985/04]
English:Woven diaphragm for aqueous electrolytes[1985/04]
French:Diaphragme tissé pour électrolytes aqueux[1985/04]
Examination procedure30.05.1984Examination requested  [1985/04]
06.08.1987Despatch of a communication from the examining division (Time limit: M04)
17.10.1987Reply to a communication from the examining division
14.01.1988Despatch of communication of intention to grant (Approval: Yes)
08.02.1988Communication of intention to grant the patent
07.03.1988Fee for grant paid
07.03.1988Fee for publishing/printing paid
Opposition(s)11.05.1989No opposition filed within time limit [1989/32]
Fees paidRenewal fee
17.04.1986Renewal fee patent year 03
22.04.1987Renewal fee patent year 04
19.04.1988Renewal fee patent year 05
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
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]GB1036416  (MILES LAB);
 [X]EP0068226  (HOECHST AG [DE], et al);
 [A]US2942327  (CORRY WILLIAM A);
 [A]FR1470721  (BAYER AG);
 [A]EP0031724  (DU PONT [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.