Patent US2697662A successfully refreshed from Google Patents.
US2697662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color correction processes
Assignee: EIDP Inc
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Filing: 1951-07-24
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Granted: 1954-12-21
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Expires: 1971-07-24
Abstract
No abstract record available.
Inventors
- 👤 Mcqueen David Malcolm
- 👤 Weaver Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:35
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROCESS FOR MAKING A COLOR COMPONENT IMAGE RECORD WITH AN INTEGRAL MASK WHICH COMPRISES DEVELOPING A FILM ELEMENT BEARING AN EXPOSED LIGHT-SENSITIVE SILVER HALIDE LAYER CONTAINING A COLORLESS POLYVINYL ACETAL COLOR-FORMIER WHICH CONTAINS A NUCLEUS POSSESSING A STRUCTURE OF THE FORMULA
Claim 2
Dependent Claim
42 words
A PROCESS FOR MAKING A COLOR COMPONENT IMAGE RECORD WITH AN INTEGRAL MASK WHICH COMPRISES DEVELOPING A FILM ELEMENT BEARING AN EXPOSED LIGHT-SENSITIVE SILVER HALIDE LAYER CONTAINING A COLORLESS POLYVINYL ACETAL COLOR-FORMIER WHICH CONTAINS A NUCLEUS POSSESSING A STRUCTURE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |