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Extract from the Register of European Patents

EP About this file: EP0217223

EP0217223 - Digital-to-analog converter with temperature compensation [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  21.03.1991
Database last updated on 31.05.2024
Most recent event   Tooltip12.11.1999Lapse of the patent in a contracting statepublished on 29.12.1999 [1999/52]
Applicant(s)For all designated states
SIEMENS AKTIENGESELLSCHAFT
Werner-von-Siemens-Str. 1
DE-80333 München / DE
[N/P]
Former [1987/15]For all designated states
SIEMENS AKTIENGESELLSCHAFT
Wittelsbacherplatz 2
D-80333 München / DE
Inventor(s)01 / Dielacher, Franz, Dipl.-Ing.
Auer von Welsbachstrasse 51
A-9500 Villach / AT
[1987/15]
Application number, filing date86112801.516.09.1986
[1987/15]
Priority number, dateDE1985353491530.09.1985         Original published format: DE 3534915
[1987/15]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0217223
Date:08.04.1987
Language:DE
[1987/15]
Type: B1 Patent specification 
No.:EP0217223
Date:23.05.1990
Language:DE
[1990/21]
Search report(s)(Supplementary) European search report - dispatched on:EP06.01.1987
ClassificationIPC:H03M1/06, G05F1/567, // (H03M1/06, 1:78)
[1987/15]
CPC:
H03M1/668 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1987/15]
TitleGerman:Digital-Analog-Umsetzer mit Temperaturkompensation[1987/15]
English:Digital-to-analog converter with temperature compensation[1987/15]
French:Convertisseur numérique-analogique à compensation de température[1987/15]
Examination procedure01.10.1987Examination requested  [1987/49]
08.12.1988Despatch of a communication from the examining division (Time limit: M06)
09.06.1989Reply to a communication from the examining division
30.06.1989Despatch of a communication from the examining division (Time limit: M04)
05.07.1989Reply to a communication from the examining division
24.07.1989Despatch of communication of intention to grant (Approval: Yes)
20.11.1989Communication of intention to grant the patent
27.11.1989Fee for grant paid
27.11.1989Fee for publishing/printing paid
Opposition(s)26.02.1991No opposition filed within time limit [1991/19]
Fees paidRenewal fee
23.09.1988Renewal fee patent year 03
25.09.1989Renewal fee patent year 04
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipLU30.09.1990
[1999/52]
Documents cited:Search[X]  - IEEE ELECTRO, Band 8, Session 4/3, 1983, Seiten 1-3, New York, US; E. RITTER: "Single chip digital to analog converter systems reduce board level component count"
 [A]  - ELECTRONICS, Band 56, Nr. 13, Juni 1983, Seiten 156-159, New York, US; P. PRAZAK: "Low-cost digital-to-analog converter makes beautiful music in disk players"
 [A]  - ELECTRONICS LETTERS, Band 6, Nr. 11, Mai 1980, Seiten 418-419, Hitchin, Herts., GB; A. NEDUNGADI: "High current class AB convertor technique"
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.