US2824077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerizing a prolamine and an acrylic acid, the product obtained thereby, and a photographic emulsion containing same
Assignee: Eastman Kodak Co
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Filing: 1953-03-26
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Granted: 1958-02-18
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Expires: 1973-03-26
Abstract
No abstract record available.
Inventors
- 👤 William J Priest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:17
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
THE PROCESS FOR FORMING A GELATIN SUBSTITUTE FOR PHOTOGRAPHIC APPLICATIONS COMPRISING POLYMERIZING A PROLAMINE SELECTED FROM THE CLASS CONSISTING OF ZEIN, GLIADIN AND HORDEIN IN THE PRESENCE OF A PER COMPOUND POYLMERIZING CATALYST WITH A VINYL COMPOUND SELECTED FROM THE CLASS CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, AND ITACONIC ACID.
Claim 2
Dependent Claim
50 words
THE PROCESS FOR FORMING A GELATIN SUBSTITUTE FOR PHOTOGRAPHIC APPLICATIONS COMPRISING POLYMERIZING A PROLAMINE SELECTED FROM THE CLASS CONSISTING OF ZEIN, GLIADIN AND HORDEIN IN THE PRESENCE OF A PER COMPOUND POYLMERIZING CATALYST WITH A VINYL COMPOUND SELECTED FROM THE CLASS CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, AND ITACONIC ACID.
References Cited (Backward Citations)
US1981102A
Cited
US2498792A
Cited
US2354210A
Cited
US2406958A
Cited
US2460976A
Cited
US2548520A
Cited
US2579871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |