Patent FR800004A successfully refreshed from Google Patents.
US2145498A
Expired / Lapsed
US
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Phonograph
Assignee: Stromberg Carlson Telephone Manufacturing Co
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Filing: 1928-03-16
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Granted: 1939-01-31
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Expires: 1948-03-16
Abstract
No abstract record available.
Inventors
- 👤 Stockton Jack Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:00
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/08; G11B3/085; G11B3/08535; G11B3/08564; G11B3/08567; G11B17/00; G11B17/08; G11B17/10; G11B19/00; G11B19/02; G11B19/06
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) | 1942-01-30 | 1942-08-01 | 1943-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-30 | 1946-08-01 | 1947-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-30 | 1950-08-01 | 1951-01-31 | $7700.00 | Window Closed / Lapsed |