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Extract from the Register of European Patents

EP About this file: EP0016979

EP0016979 - Acoustic wave filter [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  18.05.1984
Database last updated on 14.09.2024
Most recent event   Tooltip18.05.1984No opposition filed within time limitpublished on 18.07.1984 [1984/29]
Applicant(s)For all designated states
SIEMENS AKTIENGESELLSCHAFT
Werner-von-Siemens-Str. 1
DE-80333 München / DE
[N/P]
Former [1980/21]For all designated states
SIEMENS AKTIENGESELLSCHAFT
Wittelsbacherplatz 2
D-80333 München / DE
Inventor(s)01 / Bulst, Wolf-Eckhart, Dipl.-Phys.
Arnikastrasse 2
D-8011 Vaterstetten / DE
02 / Eschler, Hans, Dr.
Auguste-Viktoria-Strasse 110
D-1000 Berlin 33 / DE
[1980/21]
Application number, filing date80101065.303.03.1980
[1980/21]
Priority number, dateDE1979290970512.03.1979         Original published format: DE 2909705
[1980/21]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0016979
Date:15.10.1980
Language:DE
[1980/21]
Type: B1 Patent specification 
No.:EP0016979
Date:06.07.1983
Language:DE
[1983/27]
Search report(s)(Supplementary) European search report - dispatched on:EP08.08.1980
ClassificationIPC:H03H9/64
[1980/21]
CPC:
H03H9/14514 (EP,US); H03H9/14505 (EP,US)
Designated contracting statesAT,   BE,   CH,   FR,   GB,   IT,   NL,   SE [1980/21]
TitleGerman:Akustisches Wellenfilter[1980/21]
English:Acoustic wave filter[1980/21]
French:Filtre à ondes acoustiques[1980/21]
Examination procedure31.03.1981Examination requested  [1981/23]
25.03.1982Despatch of a communication from the examining division (Time limit: M04)
28.05.1982Reply to a communication from the examining division
01.10.1982Despatch of communication of intention to grant (Approval: )
28.12.1982Communication of intention to grant the patent
04.02.1983Fee for grant paid
04.02.1983Fee for publishing/printing paid
Opposition(s)07.04.1984No opposition filed within time limit [1984/29]
Fees paidRenewal fee
26.03.1982Renewal fee patent year 03
25.03.1983Renewal fee patent year 04
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Documents cited:SearchUS3550045  [ ] (ADLER ROBERT);
 US3688223  [ ] (PRATT RONALD GEORGE, et al);
 DE2132985  [ ] (SIEMENS AG);
 FR2265220  [ ] (HAZELTINE CORP [US]);
 DE2610183  [ ] (MURATA MANUFACTURING CO);
 DE2615719  [ ] (SIEMENS AG);
 GB1529942  [ ] (MULLARD LTD)
    [ ] - 1973 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS MONTEREY, 5-7 November 1973, New York, US, A.J. DEVRIES et al.: "A design method for surface-wave filters using simple structures as building blocks", Seiten 441-444 * Das ganze Dokument *
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.