US3206312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic film having antistatic agent therein
Assignee: Eastman Kodak Co
•
Filing: 1962-06-12
•
Granted: 1965-09-14
•
Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Sterman
- 👤 Louis M Minsk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/89; C; C08; C08F; C08F8/00; C08F8/14; C08F8/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PHOTOGRAPHIC FILM COMPRISING FILM BASE HAVING ON ONE SIDE A LAYER COMPOSED OF 15-100% OF A WATER-SOLUBLE SALT OF A CARBOXY ESTER-LACTONE OF AN INTERPOLYMER OF (1) AN UNSATURATED ALPHA-BETA-DICARBOXYLIC ACID AND (2) A VINYL ESTER OF A CARBOXYLIC ACID, WHICH SALT IS 25-98% NEUTRALIZED AND ON THE OTHER SIDE A GELATIN-SILVER HALIDE PHOTOGRAPHIC EMULSION LAYER.
Claim 2
Dependent Claim
57 words
A PHOTOGRAPHIC FILM COMPRISING FILM BASE HAVING ON ONE SIDE A LAYER COMPOSED OF 15-100% OF A WATER-SOLUBLE SALT OF A CARBOXY ESTER-LACTONE OF AN INTERPOLYMER OF (1) AN UNSATURATED ALPHA-BETA-DICARBOXYLIC ACID AND (2) A VINYL ESTER OF A CARBOXYLIC ACID, WHICH SALT IS 25-98% NEUTRALIZED AND ON THE OTHER SIDE A GELATIN-SILVER HALIDE PHOTOGRAPHIC EMULSION LAYER.
References Cited (Backward Citations)
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US2360947A
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US2725297A
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US2717834A
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US3007901A
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US2763578A
Cited
US3102028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |