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EP0287637
European procedure
Extract from the Register of European Patents
EP About this file: EP0287637
| EP0287637 - MAGNETIC DISK WRITE PRECOMPENSATION [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 11.02.1993 Database last updated on 03.01.2025 | Most recent event Tooltip | 23.11.2007 | Lapse of the patent in a contracting state | published on 26.12.2007 [2007/52] | Applicant(s) | For all designated states UNISYS CORPORATION P.O. Box 500 Blue Bell, PA 19424-0001 / US | [1988/43] | Inventor(s) | 01 /
STAMNESS, Jesse, I. 26010 New Bridge Dr. Los Altos Hills, CA 94022 / US | 02 /
MORROW, Raymond, W. 1430 Montego Dr. San Jose, CA 95120 / US | 03 /
ASATO, Edward, E. 647 Endicott Dr. Sunnyvale, CA 94037 / US | [1988/43] | Representative(s) | Eisenführ Speiser Patentanwälte Rechtsanwälte PartGmbB Postfach 10 60 78 28060 Bremen / DE | [N/P] |
| Former [1988/43] | Eisenführ, Speiser & Partner Martinistrasse 24 D-28195 Bremen / DE | Application number, filing date | 87907174.4 | 05.10.1987 | [1988/43] | WO1987US02516 | Priority number, date | US19860920001 | 17.10.1986 Original published format: US 920001 | US19860920004 | 17.10.1986 Original published format: US 920004 | [1988/43] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO8802915 | Date: | 21.04.1988 | Language: | EN | [1988/09] | Type: | A1 Application with search report | No.: | EP0287637 | Date: | 26.10.1988 | Language: | EN | The application published by WIPO in one of the EPO official languages on 21.04.1988 takes the place of the publication of the European patent application. | [1988/43] | Type: | B1 Patent specification | No.: | EP0287637 | Date: | 08.04.1992 | Language: | EN | [1992/15] | Search report(s) | International search report - published on: | EP | 21.04.1988 | Classification | IPC: | G11B20/10, // G11B5/09 | [1988/43] | CPC: |
G11B20/10194 (EP)
| Designated contracting states | BE, DE, FR, GB, IT, NL, SE [1988/43] | Title | German: | SCHREIB-VORKOMPENSIERUNG FÜR MAGNETISCHE PLATTE | [1988/43] | English: | MAGNETIC DISK WRITE PRECOMPENSATION | [1988/43] | French: | PRECOMPENSATION D'ECRITURE SUR DISQUES MAGNETIQUES | [1988/43] | Entry into regional phase | 04.07.1988 | National basic fee paid | 04.07.1988 | Designation fee(s) paid | 04.07.1988 | Examination fee paid | Examination procedure | 04.07.1988 | Examination requested [1988/43] | 30.11.1990 | Despatch of a communication from the examining division (Time limit: M04) | 30.03.1991 | Reply to a communication from the examining division | 21.06.1991 | Despatch of communication of intention to grant (Approval: Yes) | 10.10.1991 | Communication of intention to grant the patent | 11.12.1991 | Fee for grant paid | 11.12.1991 | Fee for publishing/printing paid | Opposition(s) | 09.01.1993 | No opposition filed within time limit [1993/13] | Fees paid | Renewal fee | 25.09.1989 | Renewal fee patent year 03 | 27.09.1990 | Renewal fee patent year 04 | 23.09.1991 | 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. | Lapses during opposition Tooltip | BE | 08.04.1992 | IT | 08.04.1992 | NL | 08.04.1992 | SE | 08.04.1992 | [2007/52] |
| Former [1999/42] | BE | 08.04.1992 | |
| IT | 08.04.1992 | ||
| NL | 08.04.1992 | ||
| SE | 08.04.1992 | ||
| Former [1993/01] | BE | 08.04.1992 | |
| NL | 08.04.1992 | ||
| SE | 08.04.1992 | ||
| Former [1992/48] | NL | 08.04.1992 | |
| SE | 08.04.1992 | ||
| Former [1992/47] | SE | 08.04.1992 | Cited in | International search | JPS61156574 [ ] | Examination | JP58141410 | JP59191117 | JP5786119 | - IBM Technical Disclosure Bulletin, vol. 22, no. 5, October 1979, New York, US, D. J. Malone: "Dynamic write precompensation", page 2091 | - Patent Abstracts of Japan, vol. 7, no. 260 (P-237)(1405), 18 November 1983 & JP-A-58 141 410, & JP58141410 A 19831118 | - Electronics International, vol. 55, no. 12, June 1982, New York, US, T. Stout et al.: "Winchester electronic functions fit on four high-speed chips", pages 117-123 | - IBM Technical Disclosure Bulletin, vol. 26, no. 10A, March 1984, New York, US, J. A. Danen et al.: "Write data wrap test", page 4879 | - Patent Abstracts of Japan, vol. 9, no. 54 (P-340)(1777), 8 March 1985, & JP-A-59 191 117, & JP59191117 A 19850308 | - Patent Abstracts of Japan, vol. 6, no. 168 (P-139)(1046), 2 September 1982, & JP-A-57 86119, & JP5786119 A 19820902 |