US2964636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optically immersed photoconductive cells
Assignee: Eastman Kodak Co
•
Filing: 1956-06-05
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Granted: 1960-12-13
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Expires: 1976-06-05
Abstract
No abstract record available.
Inventors
- 👤 Donald S Cary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:01
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/02; G01J1/04; G01J1/0407; G01J1/0411; G01J1/0204; G01J1/0209
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE655890C
Cited
US2522987A
Cited
US2676117A
Cited
US2676228A
Cited
US2861165A
Cited
US2742550A
Cited
US2788381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |