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EP0544627
European procedure
Extract from the Register of European Patents
EP About this file: EP0544627
| EP0544627 - Circuit for neutralizing thermal drift in a transconductance stage [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 04.04.1996 Database last updated on 30.07.2024 | Most recent event Tooltip | 14.08.2009 | Change - representative | published on 16.09.2009 [2009/38] | Applicant(s) | For all designated states STMicroelectronics Srl Via C. Olivetti, 2 20041 Agrate Brianza (Milano) / IT | [N/P] |
| Former [1993/22] | For all designated states SGS-THOMSON MICROELECTRONICS S.r.l. Via C. Olivetti, 2 I-20041 Agrate Brianza (Milano) / IT | Inventor(s) | 01 /
Zuffada, Maurizio P.zza A. Garibaldi, 8 I-20153 Milano / IT | 02 /
Vai, Gianfranco Via Rivera, 134 I-27100 Pavia / IT | 03 /
Gregori, Marco V.le Lombardia, 28 I-20131 Milano / IT | 04 /
Moloney, David Via Brera, 24 I-20010 Cornaredo (MI) / IT | 05 /
Betti, Giorgio V.le Premuda, 24 I-20129 Milano / IT | [1993/22] | Representative(s) | Checcacci, Giorgio Porta, Checcacci & Associati S.p.A. Via Trebbia 20 20135 Milano / IT | [N/P] |
| Former [2009/38] | Checcacci, Giorgio Porta, Checcacci & Associati S.p.A. Via Trebbia 20 20135 Milano / IT | ||
| Former [1993/22] | Checcacci, Giorgio PORTA, CHECCACCI & BOTTI s.r.l. Viale Sabotino, 19/2 I-20135 Milano / IT | Application number, filing date | 92830505.1 | 18.09.1992 | [1993/22] | Priority number, date | IT1991MI03144 | 26.11.1991 Original published format: IT MI913144 | [1993/22] | Filing language | IT | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0544627 | Date: | 02.06.1993 | Language: | EN | [1993/22] | Type: | B1 Patent specification | No.: | EP0544627 | Date: | 31.05.1995 | Language: | EN | [1995/22] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.04.1993 | Classification | IPC: | H03F3/45 | [1993/22] | CPC: |
H03F3/4508 (EP,US);
H03F1/223 (EP,US);
H03F3/45286 (EP,US);
H03F2203/45304 (EP,US);
H03F2203/45674 (EP,US);
H03F2203/45696 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1993/22] | Title | German: | Schaltung zur Temperaturdriftkompensation in einer Transkonduktanzstufe | [1993/22] | English: | Circuit for neutralizing thermal drift in a transconductance stage | [1993/22] | French: | Circuit pour la compensation de la dérive thermique dans un étage de transconductance | [1993/22] | Examination procedure | 08.02.1993 | Loss of particular rights, legal effect: designated state(s) | 03.03.1993 | Despatch of communication of loss of particular rights: designated state(s) IT | 25.11.1993 | Examination requested [1994/05] | 04.12.1993 | Request for accelerated examination filed | 18.02.1994 | Despatch of a communication from the examining division (Time limit: M04) | 18.02.1994 | Decision about request for accelerated examination - accepted: Yes | 02.03.1994 | Reply to a communication from the examining division | 13.10.1994 | Despatch of communication of intention to grant (Approval: Yes) | 23.11.1994 | Communication of intention to grant the patent | 11.02.1995 | Fee for grant paid | 11.02.1995 | Fee for publishing/printing paid | Opposition(s) | 01.03.1996 | No opposition filed within time limit [1996/21] | Fees paid | Renewal fee | 22.09.1994 | Renewal fee patent year 03 | Penalty fee | Penalty fee Rule 85a EPC 1973 | 05.01.1993 | IT M01 Not yet paid |
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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. | Documents cited: | Search | [Y]DE2947771 (NIPPON MUSICAL INSTRUMENTS MFG); | [A]US4388539 (BOEKE WOUTER M [NL]); | [Y]US4618833 (RUSSELL RONALD W [US]); | [A]US4887048 (KRENIK WILLIAM R [US], et al) |