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EP0280438
European procedure
Extract from the Register of European Patents
EP About this file: EP0280438
| EP0280438 - Method for manufacturing a magnetic disk and the resulting disk [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 16.02.1995 Database last updated on 15.07.2024 | Most recent event Tooltip | 30.10.2009 | Change - representative | published on 02.12.2009 [2009/49] | Applicant(s) | For all designated states Komag, Inc. 591 Yosemite Drive Milpitas California 95035 / US | [N/P] |
| Former [1988/35] | For all designated states Komag, Inc. 591 Yosemite Drive Milpitas California 95035 / US | Inventor(s) | 01 /
Chen, Tu 13254 Paramount Drive Saratoga California 95070 / US | 02 /
Yamashita, Tsutomu Tom 1660 Braddock Court San Jose California 95125 / US | [1988/35] | Representative(s) | Ackroyd, Robert, et al WP Thompson 138 Fetter Lane London EC4A 1BT / GB | [N/P] |
| Former [2009/49] | Ackroyd, Robert, et al W.P. Thompson & Co. Eastcheap House Central Approach Letchworth Hertfordshire SG6 3DS / GB | ||
| Former [1994/15] | Ackroyd, Robert, et al W.P. THOMPSON & CO. Eastcheap House Central Approach Letchworth, Hertfordshire SG6 3DS / GB | ||
| Former [1988/35] | Ackroyd, Robert W.P. THOMPSON & CO. Celcon House 289-293 High Holborn London WC1V 7HU / GB | Application number, filing date | 88301101.7 | 10.02.1988 | [1988/35] | Priority number, date | US19870018650 | 25.02.1987 Original published format: US 18650 | [1988/35] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0280438 | Date: | 31.08.1988 | Language: | EN | [1988/35] | Type: | A3 Search report | No.: | EP0280438 | Date: | 10.10.1990 | Language: | EN | [1990/41] | Type: | B1 Patent specification | No.: | EP0280438 | Date: | 13.04.1994 | Language: | EN | [1994/15] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 20.08.1990 | Classification | IPC: | G11B5/64, G11B5/84, G11B5/66 | [1990/39] | CPC: |
G11B5/84 (EP,US);
G11B5/7371 (EP,US);
G11B5/73913 (EP,US);
G11B5/73919 (EP,US);
G11B5/73921 (EP,US);
Y10S428/90 (EP,US);
|
| Former IPC [1988/35] | G11B5/84, G11B5/66 | Designated contracting states | DE, FR, GB [1988/35] | Title | German: | Verfahren zur Herstellung eines magnetischen scheibenförmigen Aufzeichnungsträgers und resultierender Aufzeichnungsträger | [1988/35] | English: | Method for manufacturing a magnetic disk and the resulting disk | [1988/35] | French: | Méthode de fabrication d'un disque magnetique et disque résultant | [1988/35] | Examination procedure | 28.01.1991 | Examination requested [1991/13] | 13.07.1992 | Despatch of a communication from the examining division (Time limit: M06) | 18.01.1993 | Reply to a communication from the examining division | 22.04.1993 | Date of oral proceedings | 01.07.1993 | Despatch of communication of intention to grant (Approval: No) | 01.07.1993 | Minutes of oral proceedings despatched | 12.10.1993 | Despatch of communication of intention to grant (Approval: later approval) | 18.10.1993 | Communication of intention to grant the patent | 18.01.1994 | Fee for grant paid | 18.01.1994 | Fee for publishing/printing paid | Opposition(s) | 14.01.1995 | No opposition filed within time limit [1995/14] | Fees paid | Renewal fee | 12.02.1990 | Renewal fee patent year 03 | 15.02.1991 | Renewal fee patent year 04 | 10.02.1992 | Renewal fee patent year 05 | 08.02.1993 | Renewal fee patent year 06 | 08.02.1994 | Renewal fee patent year 07 |
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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]JP58085923 ; | [X]DE3616006 (HITACHI LTD [JP]); | [A]US4552820 (LIN YEONG S [US], et al); | [A]EP0120413 (TOSHIBA KK [JP]); | [A]EP0145157 (HEWLETT PACKARD CO [US]) | [A] - PATENT ABSTRACTS OF JAPAN vol. 7, no. 184 (P-216)(1329) 13 August 1983, & JP-A-58 085 923 (NIPPON DENKI K.K.) 23 May 1983, & JP58085923 A 19830523 |