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Extract from the Register of European Patents

EP About this file: EP0020297

EP0020297 - Cyclic phosphoric acid ester amides, process for their preparation and their use as stabilizers [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 11.09.2024
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
CIBA-GEIGY AG
Klybeckstrasse 141
4002 Basel / CH
[N/P]
Former [1980/25]For all designated states
CIBA-GEIGY AG
Klybeckstrasse 141
CH-4002 Basel / CH
Inventor(s)01 / Rasberger, Michael, Dr.
Waltersgrabenweg 6
CH-4125 Riehen / CH
[1980/25]
Application number, filing date80810158.809.05.1980
[1980/25]
Priority number, dateCH1979000450415.05.1979         Original published format: CH 450479
[1980/25]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0020297
Date:10.12.1980
Language:DE
[1980/25]
Type: B1 Patent specification 
No.:EP0020297
Date:13.04.1983
Language:DE
[1983/15]
Search report(s)(Supplementary) European search report - dispatched on:EP15.08.1980
ClassificationIPC:C07F9/24, C07F9/65, C08K5/51, // C10M1/44
[1980/25]
CPC:
C07F9/6578 (EP,US); C07F9/657154 (EP,US); C08K5/5399 (EP,US);
C10M137/16 (EP,US); C10M2223/02 (EP,US); C10M2223/049 (EP,US)
Designated contracting statesCH,   DE,   FR,   GB,   LI [1980/25]
TitleGerman:Zyklische Phosphorsäureesteramide, Verfahren zu ihrer Herstellung und ihre Verwendung als Stabilisatoren[1980/25]
English:Cyclic phosphoric acid ester amides, process for their preparation and their use as stabilizers[1980/25]
French:Esters amides cycliques de l'acide phosphorique, leur procédé de préparation et leur utilisation comme stabilisants[1980/25]
File destroyed:03.03.2001
Examination procedure12.05.1980Examination requested  [1980/25]
29.10.1981Despatch of a communication from the examining division (Time limit: M04)
13.02.1982Reply to a communication from the examining division
15.07.1982Despatch of communication of intention to grant (Approval: )
11.10.1982Communication of intention to grant the patent
27.12.1982Fee for grant paid
27.12.1982Fee for publishing/printing paid
Opposition(s)14.01.1984No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
01.04.1982Renewal fee patent year 03
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Documents cited:SearchSU179918  [ ];
 US3297631  [ ] (BOWN DELOS E, et al);
 FR2354337  [ ] (EXXON RESEARCH ENGINEERING CO [US])
    [ ] - CHEMICAL ABSTRACTS, Band 82, 1975, Zusammenfassung Nr. 58628v, Seite 41, Columbus, Ohio, US, N.A. MUKMENEVA et al.: "Inhibiting action of some dialkyl(aryl) phosphorous acids" & VYSOKOMOL. SOEDIN. SER.B, 1974, 16(8), 635-7 * Zusammenfassung *
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.