US3380682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape transport
Assignee: Ampex Corp
•
Filing: 1966-05-02
•
Granted: 1968-04-30
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Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 Peter D Georgantas
- 👤 Ronald E Loosen
- 👤 Edward S Kinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:03
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; G11B15/58; G11B15/60; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |