US2690472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for photographically recording television programs
Assignee: RCA Corp
•
Filing: 1950-12-21
•
Granted: 1954-09-28
•
Expires: 1970-12-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Pierre H Boucheron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:48
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2081730A
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US2208404A
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US2308441A
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US2303181A
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US2420197A
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US2538910A
Cited
US2531497A
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US2615088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |