blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability
Register Forum

2022.02.11

More...
blank News flashes

News flashes

New version of the European Patent Register - SPC information for Unitary Patents.

2024-03-06

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0350705

EP0350705 - Use of homopolycarbonates from 3,3'-dihydroxydiphenylether for the modification of thermoplastic sheets [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  08.05.1992
Database last updated on 26.06.2024
Most recent event   Tooltip08.05.1992Withdrawal of applicationpublished on 01.07.1992 [1992/27]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1990/03]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / Weymanns, Günther, Dr.
Karl-Arnold-Strasse 4
D-5090 Leverkusen / DE
02 / Berg, Klaus, Dr.
Hansastrasse 124
D-4150 Krefeld / DE
03 / Grigo, Ulrich, Dr.
Michelsheide 9
D-4152 Kempen 3 / DE
04 / Idel, Karsten, Dr.
Am Schwarzkamp 38
D-4150 Krefeld / DE
05 / Bottenbruch, Ludwig, Dr.
Wöhlerstrasse 5
D-4150 Krefeld / DE
[1990/03]
Application number, filing date89111645.127.06.1989
[1990/03]
Priority number, dateDE1988382330609.07.1988         Original published format: DE 3823306
[1990/03]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0350705
Date:17.01.1990
Language:DE
[1990/03]
Type: A3 Search report 
No.:EP0350705
Date:24.07.1991
Language:DE
[1991/30]
Search report(s)(Supplementary) European search report - dispatched on:EP05.06.1991
ClassificationIPC:C08J5/18, C08L101/00, // (C08L101/00, 69:00)
[1990/03]
CPC:
C08L71/123 (EP,US); C08G64/06 (EP,US); C08J5/18 (EP,US);
C08L101/00 (EP,US); C08L69/00 (EP,US)
C-Set:
C08L101/00, C08L2666/14 (US,EP);
C08L71/123, C08L2666/18 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [1990/03]
TitleGerman:Verwendung von Homopolycarbonaten aus 3,3'-Dihydroxydiphenylether zur Modifizierung von Folien aus Thermoplasten[1990/03]
English:Use of homopolycarbonates from 3,3'-dihydroxydiphenylether for the modification of thermoplastic sheets[1990/03]
French:Utilisation d'homopolycarbonates de 3,3'-dihydroxydiphényléther pour la modification de feuilles à base de thermoplastes[1990/03]
File destroyed:12.06.1999
Examination procedure27.06.1989Examination requested  [1990/03]
22.04.1992Despatch of a communication from the examining division (Time limit: M04)
06.05.1992Application withdrawn by applicant  [1992/27]
Fees paidRenewal fee
28.12.1990Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
competence of the Unified
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[A]JP51123282  ;
 [A]DE3537622  (BAYER AG [DE])
 [A]  - CHEMICAL ABSTRACTS, Band 86, Nr. 12, 21. März 1977, Zusammenfassung Nr. 73751f, Columbus, Ohio, US; & JP-A-51 123 282 (MITSUBISHI PLASTICS INDUSTRIES, LTD) 27-10-1976, & JP51123282 A 00000000
 [AD]  - JOURNAL OF POLYMER SCIENCE: PART A: POLYMER CHEMISTRY, Band 25, Nr. 12, Dezember 1987, Seiten 3413-3422, John Wiley & Sons, Inc.; A. FACTOR et al.: "The synthesis, characterization, and weathering behaviour of polycarbonates derived from 3,3'-dihydroxydiphenyl ether"
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.