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Patent US3429579A successfully refreshed from Google Patents.
US3429579A
Expired / Lapsed
US
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Drive mechanism for tape recorder
Assignee: General Electric Co
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Filing: 1967-04-14
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Granted: 1969-02-25
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Expires: 1987-04-14
Abstract
No abstract record available.
Inventors
- 👤 Yates M Hoag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:41
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2583385A
Cited
US2668059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |