US2639322A
Expired / Lapsed
US
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Assignee: RCA Corp
•
Filing: 1948-10-30
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Granted: 1953-05-19
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Expires: 1968-10-30
Abstract
No abstract record available.
Inventors
- 👤 Charles J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:17
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/0607; H04N1/0621; H04N1/0642; H04N1/024; H04N1/028; H04N1/029; H04N1/0657; H04N1/0664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2302827A
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US2019864A
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US2256364A
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US2483449A
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US2413400A
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US2435250A
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US2464618A
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US2466221A
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US2538547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |