US2654858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the integration and control of radiation, particularly for the controlof exposure in photographic processes
Assignee: Individual
•
Filing: 1949-02-23
•
Granted: 1953-10-06
•
Expires: 1969-02-23
Abstract
No abstract record available.
Inventors
- 👤 Feller Anton Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:39
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/80; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1645280A
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US2193953A
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US1939243A
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US1863052A
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US1991477A
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US2177259A
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US2339053A
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US2469076A
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US2438303A
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US2463985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |