US3072484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insolubilization of photographic antistatic coatings
Assignee: Eastman Kodak Co
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Filing: 1959-02-12
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Granted: 1963-01-08
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Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Cornelius C Unruh
- 👤 Calvin S Garber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:44
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/89; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PHOTOGRAPHIC FILM PRODUCT COMPRISED OF (A) A RELATIVELY NON-POROUS FILM SUPPORT, (B) AT LEAST ONE LIGHTSENSITIVE SILVER HALIDE EMULSION LAYER ON ONE SURFACE OF THE SUPPORT, AND (C) A BACKING LAYER ON THE OTHER SURFACE OF THE SUPPORT, SAID BACKING LAYER BEING COMPRISED OF THE PRODUCT DERIVED BY CROSSLINKING A 50% TO 80% QUATERNIZED TERTIARY AMINO-CONTAINING POLYMERIC MATERIAL WITH A POLYFUNCTIONAL CROSSLINKING AGENT CONTAINING A PLURALITY OF GROUPS REACTIVE TO FORM QUATERNARY AMMONIUM LINKAGES WITH THE UNQUATERNIZED TERTIARY AMINO GROUPS OF THE POLYMERIC MATERIAL.
Claim 2
Dependent Claim
85 words
A PHOTOGRAPHIC FILM PRODUCT COMPRISED OF (A) A RELATIVELY NON-POROUS FILM SUPPORT, (B) AT LEAST ONE LIGHTSENSITIVE SILVER HALIDE EMULSION LAYER ON ONE SURFACE OF THE SUPPORT, AND (C) A BACKING LAYER ON THE OTHER SURFACE OF THE SUPPORT, SAID BACKING LAYER BEING COMPRISED OF THE PRODUCT DERIVED BY CROSSLINKING A 50% TO 80% QUATERNIZED TERTIARY AMINO-CONTAINING POLYMERIC MATERIAL WITH A POLYFUNCTIONAL CROSSLINKING AGENT CONTAINING A PLURALITY OF GROUPS REACTIVE TO FORM QUATERNARY AMMONIUM LINKAGES WITH THE UNQUATERNIZED TERTIARY AMINO GROUPS OF THE POLYMERIC MATERIAL.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |