Patent US2652729A successfully refreshed from Google Patents.
US2652729A
Expired / Lapsed
US
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Phonograph
Assignee: WEBSTER CHICAGO CORP
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Filing: 1950-01-13
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Granted: 1953-09-22
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Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 Colin B Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:21
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/08; G11B17/12; G11B17/16; G11B3/00; G11B3/02; G11B3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262731A
Cited
US2248384A
Cited
US2254066A
Cited
US2281665A
Cited
US2260319A
Cited
US2530820A
Cited
US2438264A
Cited
US2438265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |