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Extract from the Register of European Patents

EP About this file: EP0055055

EP0055055 - Method of stabilizing hydrophilic polymer compositions and stabilized hydrophilic polymer compositions [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  08.03.1984
Database last updated on 16.09.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
ROHM AND HAAS COMPANY
Independence Mall West
Philadelphia
Pennsylvania 19105 / US
[N/P]
Former [1982/26]For all designated states
ROHM AND HAAS COMPANY
Independence Mall West
Philadelphia Pennsylvania 19105 / US
Inventor(s)01 / Witiak, David
500 Stony Hill Road
Yardley Pennsylvania 19067 / US
[1982/26]
Representative(s)Angell, David Whilton, et al
ROHM AND HAAS European Operations Patent Department Lennig House 2 Mason's Avenue Croydon
CR9 3NB / GB
[N/P]
Former [1982/26]Angell, David Whilton, et al
ROHM AND HAAS European Operations Patent Department Lennig House 2 Mason's Avenue
Croydon CR9 3NB / GB
Application number, filing date81305838.511.12.1981
[1982/26]
Priority number, dateUS1980021890922.12.1980         Original published format: US 218909
[1982/26]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0055055
Date:30.06.1982
Language:EN
[1982/26]
Type: A3 Search report 
No.:EP0055055
Date:30.03.1983
Language:EN
[1983/13]
Search report(s)(Supplementary) European search report - dispatched on:EP26.01.1983
ClassificationIPC:C08F8/44
[1982/26]
CPC:
C08F8/44 (EP)
C-Set:
C08F8/44, C08F220/06 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1982/26]
TitleGerman:Verfahren zur Stabilisierung von hydrophilen Polymerzusammensetzungen und stabilisierte hydrophile Polymerzusammensetzungen[1982/26]
English:Method of stabilizing hydrophilic polymer compositions and stabilized hydrophilic polymer compositions[1982/26]
French:Procédé pour stabiliser des compositions de polymères hydrophiles et compositions de polymères hydrophiles stabiliseés[1982/26]
File destroyed:14.07.1990
Examination procedure25.10.1982Examination requested  [1983/01]
31.10.1983Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1984/19]
11.01.1984Application deemed to be withdrawn, date of legal effect  [1984/19]
Fees paidPenalty fee
Additional fee for renewal fee
02.01.198403   M06   Not yet paid
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Documents cited:Search[A]FR2276340  (DU PONT [US]);
 [AD]US4104214  (MEIERHOEFER ALAN W)
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.