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Extract from the Register of European Patents

EP About this file: EP0023868

EP0023868 - Optical device for access to an information carrier track and optical memory system comprising such a device [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  22.05.1984
Database last updated on 25.09.2024
Most recent event   Tooltip22.05.1984No opposition filed within time limitpublished on 25.07.1984 [1984/30]
Applicant(s)For all designated states
THOMSON-CSF
173, Boulevard Haussmann
F-75008 Paris / FR
[1982/21]
Former [1981/06]For all designated states
THOMSON-CSF
173, Boulevard Haussmann
F-75008 Paris / FR
Inventor(s)01 / Bricot, Claude
"THOMSON-CSF" SCPI 173, Bld Haussmann
F-75360 Paris Cedex 08 / FR
02 / Leterme, Dominique
"THOMSON-CSF" SCPI 173, Bld Haussmann
F-75360 Paris Cedex 08 / FR
[1981/06]
Representative(s)Wang, Pierre, et al
THOMSON-CSF SCPI 173, Bld Haussmann
75379 Paris Cedex 08 / FR
[N/P]
Former [1981/06]Wang, Pierre, et al
THOMSON-CSF SCPI 173, Bld Haussmann
F-75379 Paris Cedex 08 / FR
Application number, filing date80401133.631.07.1980
[1981/06]
Priority number, dateFR1979001997303.08.1979         Original published format: FR 7919973
[1981/06]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0023868
Date:11.02.1981
Language:FR
[1981/06]
Type: B1 Patent specification 
No.:EP0023868
Date:20.07.1983
Language:FR
[1983/29]
Search report(s)(Supplementary) European search report - dispatched on:EP25.11.1980
ClassificationIPC:G11B7/12, G11B7/00
[1981/06]
CPC:
G11B7/12 (EP,US); G11B7/08 (EP,US)
Designated contracting statesDE,   GB,   IT,   NL,   SE [1981/06]
TitleGerman:Optische Vorrichtung zum Spurzugriff eines Informationsträgers und optisches Speichersystem mit einer solchen Vorrichtung[1981/06]
English:Optical device for access to an information carrier track and optical memory system comprising such a device[1981/06]
French:Dispositif optique d'accès à une piste portée par un support d'information et système de mémoire optique comportant un tel dispositif[1981/06]
Examination procedure23.02.1981Examination requested  [1981/18]
28.08.1981Despatch of a communication from the examining division (Time limit: M04)
22.12.1981Reply to a communication from the examining division
22.04.1982Despatch of a communication from the examining division (Time limit: M02)
07.06.1982Reply to a communication from the examining division
16.11.1982Despatch of communication of intention to grant (Approval: )
17.12.1982Communication of intention to grant the patent
18.02.1983Fee for grant paid
18.02.1983Fee for publishing/printing paid
Opposition(s)25.04.1984No opposition filed within time limit [1984/30]
Fees paidRenewal fee
26.06.1982Renewal fee patent year 03
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Documents cited:SearchJP53147504  [ ];
 JP52119952  [ ];
 JP54039103  [ ];
 FR2291663  [ ] (PHILIPS NV [NL]);
 FR2312091  [ ] (PHILIPS NV [NL]);
 [AD]FR2325953  (THOMSON BRANDT [FR]);
 DE2634243  [ ] (BOSCH GMBH ROBERT);
 [X]FR2399087  (MCA DISCO VISION [US]);
 [X]FR2403575  (HITACHI LTD [JP]);
 DE2801062  [ ] (JACOBS ELI S);
 [P]GB2022914  (HITACHI LTD);
 [P]FR2440055  (MITSUBISHI ELECTRIC CORP [JP])
    [ ] - PATENTS ABSTRACT OF JAPAN, vol. 3, no. 18, 16 février 1979, page 127, E-91, & JP-A-53 147 504 (YONEZAWA), & JP53147504 A 00000000
    [ ] - PATENTS ABSTRACTS OF JAPAN, vol. 2, no. 6, 17 janvier 1978, page 9921, E-77, & JP-A-52 119 952 (CANON), & JP52119952 A 00000000
    [ ] - PATENTS ABSTRACTS OF JAPAN, vol. 3, no. 60, 23 mai 1979, page 133, E-112, & JP-A-54 039 103 (NIPPON VICTOR), & JP54039103 A 00000000
Examination   - Aide-mémoire de Physique par B. YAVORSKI et al, Traduction française, Editions MIR (PARIS) 1975
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.