US3296155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric hardeners for gelatin
Assignee: Eastman Kodak Co
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Filing: 1965-10-08
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Granted: 1967-01-03
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Louis M Minsk
- 👤 Hyman L Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:23
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30; G03C1/307; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F8/00; C09; C09H; C09H7/00; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
21 words
A COMPOSITION OF MATTER COMPRISING GEALTIN CONTAINING AS A HARDENER THEREIN AN EFFECTIVE HARDENING AMOUNT OF COPOLY(VINYL ACRYLATE-VINYL ACETATE-VINYL ACID SUCCINATE).
Claim 2
Dependent Claim
21 words
A COMPOSITION OF MATTER COMPRISING GEALTIN CONTAINING AS A HARDENER THEREIN AN EFFECTIVE HARDENING AMOUNT OF COPOLY(VINYL ACRYLATE-VINYL ACETATE-VINYL ACID SUCCINATE).
Claim 3
Dependent Claim
19 words
A COMPOSITION OF MATTER COMPRISING GELATIN CONTAINING AS A HARDENER THEREIN AN EFFECTIVE HARDENING AMOUNT OF COPOLY(ETHYLENE-BETA-VINYLSULFONYETHYL ACID MALEATE).
Claim 4
Dependent Claim
19 words
A COMPOSITION OF MATTER COMPRISING GELATIN CONTAINING AS A HARDENER THEREIN AN EFFECTIVE HARDENING AMOUNT OF COPOLY(ETHYLENE-BETA-VINYLSULFONYETHYL ACID MALEATE).
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |