US2652345A
Expired / Lapsed
US
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Method of setting protein containing coatings with ammonium
Assignee: Eastman Kodak Co
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Filing: 1952-04-29
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Granted: 1953-09-15
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Expires: 1972-04-29
Abstract
No abstract record available.
Inventors
- 👤 Jean E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:57
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/04; B05D3/0433; B05D3/0453; B05D3/046; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30; G03C1/74
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
IN THE APPLICATION OF COATING OF SOLUTIONS IN WATER OF AT LEAST 2% CONCENTRATION OF PROTEIN HAVING A PH AT WHICH THE PROTEIN WILL REMAIN IN SOLUTION AT ROOM TEMPERATURE WHICH PROTEIN SOLUTIONS CONTAIN THEREIN IN SUSPENSION SILVER HALIDE PARTICLES, TO A SUPPORT THEREFOR, THE METHOD OF QUICK SETTING THOSE COATINGS WHICH COMPRISES INCORPORATING IN THE PROTEIN SOLUTION CONTAINING THE SILVER HALIDE IN SUSPENSION THEREIN 1/4-50% (BASED ON THE WEIGHT OF THE PROTEIN) OF AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, GLYOXAL AND ACROLEIN, COATING OUT THE PROTEIN COMPOSITION IN FLUID FORM ONTO THE SUPPORT AND FUMING THE COATING WITH GASEOUS AMMONIA WHEREBY RAPID SETTING OF THE COATING IS OBTAINED WITHOUT CHILLING THEREOF BEING NECESSARY.
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) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |