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EP0265665
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EP About this file: EP0265665
| EP0265665 - Twin track magnetic data read-write head improving track misregistration effects in twin track vertical recording [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 10.08.1993 Database last updated on 30.07.2024 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states International Business Machines Corporation New Orchard Road Armonk, NY 10504 / US | [N/P] |
| Former [1988/18] | For all designated states International Business Machines Corporation Old Orchard Road Armonk, N.Y. 10504 / US | Inventor(s) | 01 /
Rogers, Lee Shannon 5312 Kirkwood Ct. Raleigh, NC 27609 / US | 02 /
Vinal, Albert Watson 810 Queensferry Rd. Cary, NC 27511 / US | [1988/18] | Representative(s) | Bonneau, Gérard Compagnie IBM France Département de Propriété Intellectuelle 06610 La Gaude / FR | [N/P] |
| Former [1988/18] | Bonneau, Gérard Compagnie IBM France Département de Propriété Intellectuelle F-06610 La Gaude / FR | Application number, filing date | 87113819.4 | 22.09.1987 | [1988/18] | Priority number, date | US19860923778 | 27.10.1986 Original published format: US 923778 | [1988/18] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0265665 | Date: | 04.05.1988 | Language: | EN | [1988/18] | Type: | A3 Search report | No.: | EP0265665 | Date: | 06.02.1991 | Language: | EN | [1991/06] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 18.12.1990 | Classification | IPC: | G11B5/02, G11B5/265 | [1988/18] | CPC: |
G11B5/58 (EP,US);
G11B5/02 (EP,US);
G11B5/024 (EP,US);
G11B5/1278 (EP,US);
G11B5/265 (EP,US);
G11B5/3103 (EP,US);
| Designated contracting states | DE, FR, GB, IT [1988/18] | Title | German: | Leseschreibkopf für magnetische Daten auf einer Doppelspur zur Verbesserung von Spur-Falschregistrierungseffekten bei Doppelspur-Vertikalaufzeichnung | [1988/18] | English: | Twin track magnetic data read-write head improving track misregistration effects in twin track vertical recording | [1988/18] | French: | Tête de lecture-écriture pour pistes jumelées de données magnétiques modifiant les effets de mauvaise coincidence de piste dans l'enregistrement vertical à pistes jumelées | [1988/18] | File destroyed: | 12.06.1999 | Examination procedure | 23.08.1988 | Examination requested [1988/42] | 30.01.1992 | Despatch of communication of intention to grant (Approval: Yes) | 18.05.1992 | Communication of intention to grant the patent | 21.07.1992 | Fee for grant paid | 21.07.1992 | Fee for publishing/printing paid | 01.04.1993 | Application deemed to be withdrawn, date of legal effect [1993/39] | 05.05.1993 | Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time [1993/39] | Fees paid | Renewal fee | 25.09.1989 | Renewal fee patent year 03 | 26.09.1990 | Renewal fee patent year 04 | 20.09.1991 | Renewal fee patent year 05 | Penalty fee | Additional fee for renewal fee | 30.09.1992 | 06 M06 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]JP5736422 ; | [A]JP6196576 ; | [A]JP56114118 ; | [Y]EP0185764 (OLYMPUS OPTICAL CO [JP]); | [Y]US4164764 (JOANNOU KYRIACOS [US]); | [YP]EP0228903 (SONY CORP [JP], et al); | [A]CH395575 (TELEFUNKEN PATENT [DE]) | [Y] - PATENT ABSTRACTS OF JAPAN vol. 6, no. 104 (P-122)(982) 15 June 1982, & JP-A-57 36422 (HITACHI) 27 February 1982,, & JP5736422 A 19820227 | [A] - PATENT ABSTRACTS OF JAPAN vol. 10, no. 274 (P-498)(2330) 18 September 1986, & JP-A-61 96576 (NEC) 15 May 1986,, & JP6196576 A 19860515 | [A] - PATENT ABSTRACTS OF JAPAN vol. 5, no. 185 (P-91)(857) 25 November 1981, & JP-A-56 114118 (TEAC) 8 September 1981,, & JP56114118 A 19810908 |