Patent US3416923A successfully refreshed from Google Patents.
US3416923A
Expired / Lapsed
US
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Amide dispersant for fluorescent agents in photographic elements
Assignee: Eastman Kodak Co
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Filing: 1964-08-24
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Granted: 1968-12-17
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 John H Van Campen
- 👤 Roger B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:02
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155; Y; Y10; Y10S; Y10S430/00; Y10S430/134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB511281A
Cited
US2668777A
Cited
GB786234A
Cited
DE1150274B
Cited
US2980625A
Cited
US3127270A
Cited
US3282697A
Cited
BE641414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |