US2622495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical system for increasing the angle of view of aerial cameras
Assignee: Individual
•
Filing: 1946-05-21
•
Granted: 1952-12-23
•
Expires: 1966-05-21
Abstract
No abstract record available.
Inventors
- 👤 Jensen Homer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:20
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1438906A
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US2352570A
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FR338386A
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US1149122A
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US1273183A
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US1479211A
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US1477999A
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GB213001A
Cited
US1952337A
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US2194059A
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US2433534A
Cited
US2437159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |