Patent US2918191A successfully refreshed from Google Patents.
Patent US3615545A successfully refreshed from Google Patents.
US3615545A
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Novel mordant compositions and photographic elements containing same
Assignee: Eastman Kodak Co
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Filing: 1967-09-08
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Granted: 1971-10-26
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Expires: 1987-09-08
Abstract
Abstract A gelatin composition comprising a basic mordant and an acrylic interpolymer which comprises units of an alkyl acrylate and from about 5 to about 30 weight percent of an ethenic monomer containing a solubilizing group. In one aspect, this invention relates to relatively insoluble photographic elements having antihalation undercoats of said composition which provide strong adherency between film supports and photographic emulsion layers during developing processes.
Inventors
- 👤 Norman W Kalenda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:54
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/835
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
18 words
A photographic element according to claim 1 wherein said radiation sensitive layer comprises a gelatino silver halide emulsion.
Claim 2
Dependent Claim
19 words
A photographic element according to claim 1 wherein said layer comprising said basic mordant further comprises an acid dye.
Claim 3
Dependent Claim
14 words
A photographic element according to claim 1 wherein said support is a linear polyester.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |