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Extract from the Register of European Patents

EP About this file: EP0228021

EP0228021 - Improvements to digital phase-locked loop circuits [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.01.1992
Database last updated on 05.10.2024
Most recent event   Tooltip09.01.1992No opposition filed within time limitpublished on 26.02.1992 [1992/09]
Applicant(s)For all designated states
CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
Via Guglielmo Reiss Romoli, 274
10148 Turin / IT
[N/P]
Former [1987/28]For all designated states
CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
Via Guglielmo Reiss Romoli, 274
I-10148 Turin / IT
Inventor(s)01 / Mogavero Bruno, Carlo
Via Guido Reni, 96/84
Turin / IT
02 / Ambrosio, Renato
Via Trotta, 17
San Raffaele Cimena (TO) / IT
[1987/28]
Representative(s)Riederer Freiherr von Paar, Anton, et al
Boehmert & Boehmert
Kanzlei Landshut
Postfach 26 64
84010 Landshut / DE
[N/P]
Former [1987/28]Riederer Freiherr von Paar zu Schönau, Anton, et al
Van der Werth, Lederer & Riederer Postfach 2664
D-84010 Landshut / DE
Application number, filing date86117500.816.12.1986
[1987/28]
Priority number, dateIT1985006806117.12.1985         Original published format: IT 6806185
[1987/28]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0228021
Date:08.07.1987
Language:EN
[1987/28]
Type: A3 Search report 
No.:EP0228021
Date:08.03.1989
Language:EN
[1989/10]
Type: B1 Patent specification 
No.:EP0228021
Date:06.03.1991
Language:EN
[1991/10]
Search report(s)(Supplementary) European search report - dispatched on:EP19.01.1989
ClassificationIPC:H04L7/033
[1991/10]
CPC:
H04L7/0331 (EP,US)
Former IPC [1987/28]H04L7/02
Designated contracting statesDE,   FR,   GB,   NL,   SE [1987/28]
TitleGerman:Digitale phasenverriegelte Schleifenschaltungen[1987/28]
English:Improvements to digital phase-locked loop circuits[1987/28]
French:Circuits de boucle de verrouillage de phase numérique[1987/28]
Examination procedure08.03.1989Examination requested  [1989/20]
30.03.1989Request for accelerated examination filed
23.06.1989Despatch of a communication from the examining division (Time limit: M06)
23.06.1989Decision about request for accelerated examination - accepted: Yes
21.12.1989Reply to a communication from the examining division
27.03.1990Despatch of communication of intention to grant (Approval: Yes)
11.07.1990Communication of intention to grant the patent
09.10.1990Fee for grant paid
09.10.1990Fee for publishing/printing paid
Opposition(s)07.12.1991No opposition filed within time limit [1992/09]
Fees paidRenewal fee
21.12.1988Renewal fee patent year 03
23.12.1989Renewal fee patent year 04
21.12.1990Renewal fee patent year 05
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Documents cited:Search[A]US4280099  (RATTLINGOURD GLEN D);
 [A]US4466111  (BENNETT JAMES F [US]);
 [A]WO8504775  (ADVANCED MICRO DEVICES INC [US])
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.