Patent US2977124A successfully refreshed from Google Patents.
US2977124A
Expired / Lapsed
US
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Phonograph apparatus
Assignee: Individual
•
Filing: 1955-12-22
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Granted: 1961-03-28
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Expires: 1975-12-22
Abstract
No abstract record available.
Inventors
- 👤 Staar Marcel Jules Helene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:25
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B19/26; G11B19/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE504296A
Cited
US2564290A
Cited
US2525926A
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US2551266A
Cited
US2654457A
Cited
US2652729A
Cited
GB683150A
Cited
BE504207A
Cited
US2599963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |