Patent US2925738A successfully refreshed from Google Patents.
US2925738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural speed phonograph turntable drive mechanisms
Assignee: GEN IND CO
•
Filing: 1958-04-07
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Granted: 1960-02-23
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Expires: 1978-04-07
Abstract
No abstract record available.
Inventors
- 👤 Warren B Coven
- 👤 John A Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:30
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)
CA463430A
Cited
US2228931A
Cited
US2756603A
Cited
US2788669A
Cited
US2826926A
Cited
US2786559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |