US1817758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph apparatus
Assignee: General Electric Co
•
Filing: 1929-11-20
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Granted: 1931-08-04
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Expires: 1949-11-20
Abstract
No abstract record available.
Inventors
- 👤 Edward W Mcsheen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:06
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/08; G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/14; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19851; Y10T74/19865
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) | 1934-08-03 | 1935-02-02 | 1935-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-08-03 | 1939-02-02 | 1939-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-08-03 | 1943-02-02 | 1943-08-04 | $7700.00 | Window Closed / Lapsed |