Patent US2835580A successfully refreshed from Google Patents.
US2835580A
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US
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Photographic emulsion with vinyl alcohol-n-allylcyanoacetamide copolymer continuous phase
Assignee: Eastman Kodak Co
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Filing: 1955-11-10
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Granted: 1958-05-20
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Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Godowsky Leopold
- 👤 Weissberger Arnold
- 👤 William F Knechel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:44
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3882; G03C1/00; G03C1/005; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PHOTOGRAPHIC EMULSION CAPABLE OF PRODUCTING A DYE IMAGE UPON PHOTOGRAPHIC PROCESSING, ALCOHOL-N-ALLYLLAYER OF A WATER-PERMEABLE POLYVINYL ALCOHOL-N-ALLYLCRANOACETAMIDE RESIN HAVING DISPERSED THEERIN PACKETS OR DISCRETE PARTICLES EACH CONTAINING A GELATINOUS MATERIAL SELECTED FROM THE GROUP CONSISTING OD GELATIN, CTANOETHYLATED GELATIN, PHENYLURIEDO GELATIN AND THE GELATIN DERIVATIVES OBTAINED BY TREATMENT OF GELATIN WITH AROMATIC SULFONY CHLORIDES, CARBOXYLIC ACID AND CHLORIDES ANS CARBOXYLIC ACID ANHYDRIDES, SILVER HALIDE ANS A SUBSTANCE CAPABLE OF FROMING A DYE IMAGE DURIG PHOTOGRAPHIC PROCESSING.
Claim 2
Dependent Claim
77 words
A PHOTOGRAPHIC EMULSION CAPABLE OF PRODUCTING A DYE IMAGE UPON PHOTOGRAPHIC PROCESSING, ALCOHOL-N-ALLYLLAYER OF A WATER-PERMEABLE POLYVINYL ALCOHOL-N-ALLYLCRANOACETAMIDE RESIN HAVING DISPERSED THEERIN PACKETS OR DISCRETE PARTICLES EACH CONTAINING A GELATINOUS MATERIAL SELECTED FROM THE GROUP CONSISTING OD GELATIN, CTANOETHYLATED GELATIN, PHENYLURIEDO GELATIN AND THE GELATIN DERIVATIVES OBTAINED BY TREATMENT OF GELATIN WITH AROMATIC SULFONY CHLORIDES, CARBOXYLIC ACID AND CHLORIDES ANS CARBOXYLIC ACID ANHYDRIDES, SILVER HALIDE ANS A SUBSTANCE CAPABLE OF FROMING A DYE IMAGE DURIG PHOTOGRAPHIC PROCESSING.
References Cited (Backward Citations)
US2698796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |