Patent US2658763A successfully refreshed from Google Patents.
US2658763A
Expired / Lapsed
US
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Phonograph pickup device and the like
Assignee: RCA Corp
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Filing: 1948-07-31
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Granted: 1953-11-10
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Expires: 1968-07-31
Abstract
No abstract record available.
Inventors
- 👤 Henry E Roys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:25
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/16; H04R11/00; H04R11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR402575A
Cited
US1197782A
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US1281135A
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US1444196A
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US1868321A
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US1986583A
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US2399585A
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US2430476A
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US2455913A
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US2485432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |