US2536666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel-type phonographic machine
Assignee: Thomas A Edison Inc
•
Filing: 1947-01-04
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Granted: 1951-01-02
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Expires: 1967-01-04
Abstract
No abstract record available.
Inventors
- 👤 Richard M Somers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:42
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/22; G11B15/00; G11B15/02; G11B15/10; G11B15/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US789336A
Cited
US2091756A
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NL45472C
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US2196738A
Cited
US2314834A
Cited
US2351005A
Cited
US2401889A
Cited
US2419476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |