US2951653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spool-driving mechanism in magnetic tape recorders
Assignee: ELECTROMAG SOC
•
Filing: 1958-10-31
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Granted: 1960-09-06
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Expires: 1978-10-31
Abstract
No abstract record available.
Inventors
- 👤 Haenel Nisso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:49
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/02; G11B15/60; G11B15/66; G11B15/665; G11B15/6653; G11B15/6656; G11B15/675
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |