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Extract from the Register of European Patents

EP About this file: EP0033198

EP0033198 - Bias circuit for a field effect transistor [Right-click to bookmark this link]
Former [1981/31]Input optimized FET bias circuit
[1984/13]
StatusNo opposition filed within time limit
Status updated on  06.02.1985
Database last updated on 26.06.2024
Most recent event   Tooltip06.02.1985No opposition filed within time limitpublished on 10.04.1985 [1985/15]
Applicant(s)For all designated states
FORD AEROSPACE & COMMUNICATIONS CORPORATION
300 Renaissance Center P.O. Box 43339
Detroit, Michigan 48243 / US
[1981/31]
Inventor(s)01 / Rubin, Michael David
12716 Larchmont Avenue
Saratoga California 95070 / US
02 / Ho, Pang Ting
3371 Brower Avenue
Mountain View California 94040 / US
[1981/31]
Representative(s)Crawford, Andrew Birkby, et al
A.A. Thornton & Co. 235 High Holborn
London WC1V 7LE / GB
[N/P]
Former [1981/31]Crawford, Andrew Birkby, et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE / GB
Application number, filing date81300113.812.01.1981
[1981/31]
Priority number, dateUS1980011652729.01.1980         Original published format: US 116527
[1981/31]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0033198
Date:05.08.1981
Language:EN
[1981/31]
Type: B1 Patent specification 
No.:EP0033198
Date:28.03.1984
Language:EN
[1984/13]
Search report(s)(Supplementary) European search report - dispatched on:EP14.05.1981
ClassificationIPC:H03F3/21, H03F1/56
[1981/31]
CPC:
H03F1/301 (EP,US); H03F1/0261 (EP,US); H03G3/30 (EP,US);
H03F2200/18 (EP,US)
Designated contracting statesDE,   FR,   GB [1981/31]
TitleGerman:Vorspannungsschaltung für einen Feldeffekttransistor[1984/13]
English:Bias circuit for a field effect transistor[1984/13]
French:Circuit de polarisation pour un transistor à effet de champ[1984/13]
Former [1981/31]FET-Vorspannschaltung mit optimiertem Eingang
Former [1981/31]Input optimized FET bias circuit
Former [1981/31]Circuit de polarisation pour FET à entrée optimalisée
Examination procedure19.10.1981Examination requested  [1981/52]
13.08.1982Despatch of a communication from the examining division (Time limit: M04)
18.12.1982Reply to a communication from the examining division
18.04.1983Despatch of communication of intention to grant (Approval: )
12.07.1983Communication of intention to grant the patent
15.09.1983Fee for grant paid
15.09.1983Fee for publishing/printing paid
Opposition(s)29.12.1984No opposition filed within time limit [1985/15]
Fees paidRenewal fee
22.12.1982Renewal fee patent year 03
17.12.1983Renewal fee patent year 04
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Documents cited:SearchUS4011518  [ ] (IRVINE JAMES A, et al)
ExaminationUS3984783
 US3996524
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.