US3053466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape reel hold-down device
Assignee: Ampex Corp
•
Filing: 1958-05-07
•
Granted: 1962-09-11
•
Expires: 1978-05-07
Abstract
No abstract record available.
Inventors
- 👤 George D Rehklau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:03
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/662
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1055604A
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US1946455A
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US2221089A
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US2238460A
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US2357328A
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US2745604A
Cited
US2696950A
Cited
US2772809A
Cited
US2928620A
Cited
US2983460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |