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Patent US2961920A successfully refreshed from Google Patents.
US2961920A
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Composite photography
Assignee: RCA Corp
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Filing: 1957-03-15
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Granted: 1960-11-29
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Expires: 1977-03-15
Abstract
No abstract record available.
Inventors
- 👤 Lawrence T Sachtleben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:10
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/257; G; G03; G03B; G03B27/00; G03B27/72; G03B27/725
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1636834A
Cited
US2073370A
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US2164297A
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US2172936A
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US2730565A
Cited
US2745901A
Cited
US2744443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |