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EP0304591
European procedure
Extract from the Register of European Patents
EP About this file: EP0304591
| EP0304591 - Semiconductor memory with signal change detector circuit [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 06.01.1994 Database last updated on 26.07.2024 | Most recent event Tooltip | 06.01.1994 | No opposition filed within time limit | published on 23.02.1994 [1994/08] | Applicant(s) | For all designated states SIEMENS AKTIENGESELLSCHAFT Werner-von-Siemens-Str. 1 DE-80333 München / DE | [N/P] |
| Former [1989/09] | For all designated states SIEMENS AKTIENGESELLSCHAFT Wittelsbacherplatz 2 D-80333 München / DE | Inventor(s) | 01 /
Mattausch, Hans-Jürgen, Dr. rer. nat. Am Brunnen 25 D-8011 Kirchheim / DE | [1989/09] | Application number, filing date | 88110880.7 | 07.07.1988 | [1989/09] | Priority number, date | DE19873727548 | 18.08.1987 Original published format: DE 3727548 | [1989/09] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0304591 | Date: | 01.03.1989 | Language: | DE | [1989/09] | Type: | A3 Search report | No.: | EP0304591 | Date: | 16.08.1990 | Language: | DE | [1990/33] | Type: | B1 Patent specification | No.: | EP0304591 | Date: | 03.03.1993 | Language: | DE | [1993/09] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 26.06.1990 | Classification | IPC: | G11C7/00, G11C8/00, G11C11/419 | [1990/29] | CPC: |
G11C7/22 (EP,US);
G11C7/00 (KR);
G11C11/419 (EP,US);
G11C7/12 (EP,US)
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| Former IPC [1989/09] | G11C8/00, G11C7/00 | Designated contracting states | AT, DE, FR, GB, IT, NL [1989/09] | Title | German: | Halbleiterspeicher mit einer Signalwechsel-Erkennungsschaltung | [1989/09] | English: | Semiconductor memory with signal change detector circuit | [1989/09] | French: | Mémoire à semi-conducteurs avec détecteur de changement de signal | [1989/09] | Examination procedure | 19.09.1990 | Examination requested [1990/46] | 24.04.1992 | Despatch of communication of intention to grant (Approval: Yes) | 02.09.1992 | Communication of intention to grant the patent | 15.09.1992 | Fee for grant paid | 15.09.1992 | Fee for publishing/printing paid | Opposition(s) | 04.12.1993 | No opposition filed within time limit [1994/08] | Fees paid | Renewal fee | 26.07.1990 | Renewal fee patent year 03 | 20.12.1990 | Renewal fee patent year 04 | 24.07.1992 | Renewal fee patent year 05 |
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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]JP58108091 ; | [A]JP57100688 ; | [YD]EP0107415 (FUJITSU LTD [JP]); | [A]EP0139385 (MITSUBISHI ELECTRIC CORP [JP]); | [A]US4558435 (HSIEH PETER K [US]) | [Y] - PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 216 (P-225)[1361], 24. September 1983; & JP-A-58 108 091 (NIPPON DENKI K.K.) 28-06-1983, & JP58108091 A 00000000 | [A] - IBM TECHNICAL DISCLOSURE BULLETIN, Band 30, Nr. 1, Juni 1987, Seiten 304-305, New York, US; "Power reduction scheme with data-dependent write" | [A] - PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 188 (P-144)[1066], 28. September 1982; & JP-A-57 100 688 (TOKYO SHIBAURA DENKI K.K.) 22-06-1982, & JP57100688 A 00000000 |