US2557645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic record-changing phonograph mechanism
Assignee: Individual
•
Filing: 1946-09-30
•
Granted: 1951-06-19
•
Expires: 1966-09-30
Abstract
No abstract record available.
Inventors
- 👤 Fox Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:57
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1887309A
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US1955939A
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US2137276A
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US2211425A
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US2300779A
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US2348766A
Cited
US2339062A
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US2313262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |