Patent US2947542A successfully refreshed from Google Patents.
US2947542A
Expired / Lapsed
US
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Automatic record changer and player
Assignee: Capital Engineering & Manufacturing Corp
•
Filing: 1956-06-28
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Granted: 1960-08-02
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Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Arnold P Grunwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:32
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/16; G11B17/162; G11B17/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1349636A
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US1983941A
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FR906087A
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US2515273A
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US2640700A
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US2616705A
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US2695786A
Cited
US2689735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |