US2909761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selectively operable control mechanism for automatic phonographs
Assignee: Rock Ola Manufacturing Corp
•
Filing: 1953-11-16
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Granted: 1959-10-20
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Expires: 1973-11-16
Abstract
No abstract record available.
Inventors
- 👤 David C Rockola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:56
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/30; G11; G11B; G11B17/00; G11B17/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2411612A
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US2425974A
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US2382487A
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US2382488A
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US2489782A
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US2612710A
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US2551522A
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US2622144A
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US2624795A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |