US3460781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape recorder
Assignee: National Aeronautics and Space Administration
•
Filing: 1967-09-06
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Granted: 1969-08-12
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Expires: 1987-09-06
Abstract
No abstract record available.
Inventors
- 👤 Paul W Uber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733069A
Cited
US2605056A
Cited
US3252669A
Cited
US3294332A
Cited
US3370803A
Cited
US3370804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |