Patent US2953369A successfully refreshed from Google Patents.
US2953369A
Expired / Lapsed
US
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Magnetic drive and brake for magnetic tape
Assignee: Avco Manufacturing Corp
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Filing: 1957-04-05
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Granted: 1960-09-20
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Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 William P Goldberg
- 👤 Hudes Ellis
- 👤 Tannenbaum Wesley
- 👤 Vitie J Stakun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:31
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |