Patent US2475779A successfully refreshed from Google Patents.
US2475779A
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US
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Wave length modulator and control means
Assignee: RCA Corp
•
Filing: 1943-10-20
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Granted: 1949-07-12
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Expires: 1963-10-20
Abstract
No abstract record available.
Inventors
- 👤 Murray G Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/02; H03C3/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2049712A
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US2041855A
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US2114036A
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US2190319A
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US2296962A
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US2250104A
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US2332540A
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US2380947A
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US2377326A
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US2379689A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |