US1576720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant-speed electric drive for talking machines
Assignee: CHENEY TALKING MACHINE Co
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Filing: 1921-08-13
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Granted: 1926-03-16
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Expires: 1941-08-13
Abstract
No abstract record available.
Inventors
- 👤 Cheney Forest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:50
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-03-15 | 1929-09-14 | 1930-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-03-15 | 1933-09-14 | 1934-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-03-15 | 1937-09-14 | 1938-03-16 | $7700.00 | Window Closed / Lapsed |