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EP0086991
European procedure
Extract from the Register of European Patents
EP About this file: EP0086991
| EP0086991 - Static RAM with non-volatile back-up storage and method of operation thereof [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 09.02.1991 Database last updated on 19.03.2026 | Most recent event Tooltip | 09.02.1991 | No opposition filed within time limit | published on 03.04.1991 [1991/14] | Applicant(s) | For all designated states International Business Machines Corporation New Orchard Road Armonk, NY 10504 / US | [N/P] |
| Former [1983/35] | For all designated states International Business Machines Corporation Old Orchard Road Armonk, N.Y. 10504 / US | Inventor(s) | 01 /
Hoffman, Charles Reeves 1537 Shadowood Ln. Raleigh, NC 27612 / US | [1983/35] | Representative(s) | Colas, Alain Compagnie IBM France Département de Propriété Intellectuelle 06610 La Gaude / FR | [N/P] |
| Former [1983/35] | Colas, Alain Compagnie IBM France Département de Propriété Intellectuelle F-06610 La Gaude / FR | Application number, filing date | 83100795.0 | 28.01.1983 | [1983/35] | Priority number, date | US19820350480 | 19.02.1982 Original published format: US 350480 | [1983/35] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0086991 | Date: | 31.08.1983 | Language: | EN | [1983/35] | Type: | A3 Search report | No.: | EP0086991 | Date: | 27.08.1986 | Language: | EN | [1986/35] | Type: | B1 Patent specification | No.: | EP0086991 | Date: | 18.04.1990 | Language: | EN | [1990/16] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.07.1986 | Classification | IPC: | G11C11/00 | [1983/35] | CPC: |
G11C14/00 (EP,US);
Y10S257/903 (EP,US)
| Designated contracting states | DE, FR, GB [1983/35] | Title | German: | Statischer RAM Speicher mit einem nichtflüchtigen Hilfsspeicher und Betriebsverfahren dafür | [1983/35] | English: | Static RAM with non-volatile back-up storage and method of operation thereof | [1983/35] | French: | Mémoire RAM statique avec mémoire non-volatile de secours et mode de fonctionnement | [1983/35] | File destroyed: | 15.01.2000 | Examination procedure | 15.12.1983 | Examination requested [1984/08] | 11.09.1987 | Despatch of a communication from the examining division (Time limit: M06) | 10.03.1988 | Reply to a communication from the examining division | 30.06.1988 | Despatch of a communication from the examining division (Time limit: M06) | 24.12.1988 | Reply to a communication from the examining division | 04.04.1989 | Despatch of communication of intention to grant (Approval: Yes) | 21.07.1989 | Communication of intention to grant the patent | 29.08.1989 | Fee for grant paid | 29.08.1989 | Fee for publishing/printing paid | Opposition(s) | 19.01.1991 | No opposition filed within time limit [1991/14] | Fees paid | Renewal fee | 29.01.1985 | Renewal fee patent year 03 | 24.01.1986 | Renewal fee patent year 04 | 16.01.1987 | Renewal fee patent year 05 | 26.01.1988 | Renewal fee patent year 06 | 27.01.1989 | Renewal fee patent year 07 | 20.01.1990 | Renewal fee patent year 08 |
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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 | [A] IBM TECHNICAL DISCLOSURE BULLETIN, vol. 24, no. 5, October 181, pages 2456-2457, New York, US; H.H. CHAO: "Static RAM with nonvolatile backup memory" [A] | [A] ELECTRONIC DESIGN, vol. 29, no. 4, 19th February 1981, pages 72-82, Waseca, MN, Denville, NJ, US; D. BURSKY: "RAMs and ROMs crumble speed limits in lab" [A] |