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Patent US2712943A successfully refreshed from Google Patents.
US2712943A
Expired / Lapsed
US
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Phonograph record adaptor
Assignee: V M Corp
•
Filing: 1951-03-27
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Granted: 1955-07-12
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Expires: 1971-03-27
Abstract
No abstract record available.
Inventors
- 👤 James L D Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:28
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/60; G11B17/00; G11B17/02; G11B17/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1886735A
Cited
US1906066A
Cited
US2285139A
Cited
US2283797A
Cited
US2544010A
Cited
US2619351A
Cited
US2585622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |