Extract from the Register of European Patents

EP About this file: EP0485224

EP0485224 - Polyether-containing electrochemichromic solutions [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  10.09.1993
Database last updated on 30.03.2026
Most recent event   Tooltip10.09.1993Application deemed to be withdrawnpublished on 03.11.1993 [1993/44]
Applicant(s)For all designated states
DONNELLY CORPORATION
414 East Fortieth Street
Holland, Michigan 49423 / US
[N/P]
Former [1992/20]For all designated states
DONNELLY CORPORATION
414 East Fortieth Street
Holland Michigan 49423 / US
Inventor(s)01 / Varaprasad, Desaraju Venkatapanduranga
314 Jennifer Lane
Holland, Michigan 49423 / US
02 / Lynam, Niall Richard
248 Foxdown
Holland, Michigan 49424 / US
03 / Habibi, Hamid Reza
2630 Knagspough
Holland, Michigan 49424 / US
04 / Desaraju, Padma
314 Jennifer Lane
Holland, Michigan 49423 / US
[1992/20]
Representative(s)Sheard, Andrew Gregory, et al
Kilburn & Strode LLP
20 Red Lion Street
London WC1R 4PJ / GB
[N/P]
Former [1992/20]Sheard, Andrew Gregory, et al
Kilburn & Strode 30, John Street
London WC1N 2DD / GB
Application number, filing date91310331.307.11.1991
[1992/20]
Priority number, dateUS1990061040907.11.1990         Original published format: US 610409
[1992/20]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0485224
Date:13.05.1992
Language:EN
[1992/20]
Type: A3 Search report 
No.:EP0485224
Date:26.08.1992
Language:EN
[1992/35]
Search report(s)(Supplementary) European search report - dispatched on:EP10.07.1992
ClassificationIPC:C09K9/02, G02F1/15
[1992/20]
CPC:
C09K9/02 (EP,US); G02F1/1503 (EP,US); G02F2001/1502 (EP,US);
G02F2001/15145 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [1992/20]
TitleGerman:Elektrochrome Auflösungen aus Polyether[1992/20]
English:Polyether-containing electrochemichromic solutions[1992/20]
French:Solution électrochromes à base de polyether[1992/20]
File destroyed:23.08.2001
Examination procedure27.02.1993Application deemed to be withdrawn, date of legal effect  [1993/44]
08.06.1993Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time  [1993/44]
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Documents cited:Search[AD] US3451741  (MANOS PHILIP et al.)
 [A] US4018508  (MCDERMOTT MICHAEL JOHN et al.)
 [A] FR2351463  (PHILIPS NV et al.)
 [AD] US4139276  (CLECAK NICHOLAS J et al.)
 [AD] FR2375314  (IBM et al.)
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