US2466423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fine-grain developers
Assignee: Eastman Kodak Co
•
Filing: 1945-05-11
•
Granted: 1949-04-05
•
Expires: 1965-05-11
Abstract
No abstract record available.
Inventors
- 👤 Richard W Henn
- 👤 John I Crabtree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:45
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2124608A
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US2053516A
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US2113312A
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US2164687A
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US2136968A
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US2164280A
Cited
US2306923A
Cited
US2311428A
Cited
US2333766A
Cited
US2371740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-04 | 1952-10-04 | 1953-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-04 | 1956-10-04 | 1957-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-04 | 1960-10-04 | 1961-04-05 | $7700.00 | Window Closed / Lapsed |