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Patent US3065891A successfully refreshed from Google Patents.
US3065891A
Expired / Lapsed
US
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Tape motion control mechanisms
Assignee: National Research Development Corp UK
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Filing: 1959-04-13
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Granted: 1962-11-27
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Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 Wardell Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; G; G11; G11B; G11B15/00; G11B15/18; G11B15/38
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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |