Patent US3371164A successfully refreshed from Google Patents.
US3371164A
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Combined magnetic transducing and erase head
Assignee: Panasonic Holdings Corp
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Filing: 1963-11-05
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Granted: 1968-02-27
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Expires: 1983-11-05
Abstract
No abstract record available.
Inventors
- 👤 Makimura Susumu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:02
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/29; G11B5/02; G11B5/027; G11B5/03; G11B5/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2456767A
Cited
US2803708A
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US2785232A
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US2804506A
Cited
US2885488A
Cited
US2784259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |