US3038804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating aids for gelatin compositions
Assignee: Eastman Kodak Co
•
Filing: 1956-07-30
•
Granted: 1962-06-12
•
Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 William J Knox Jr
- 👤 Charles V Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:10
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043; G03C1/06; G03C1/34; G03C1/38
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
48 words
IN A METHOD OF COATING IN WHICH A GELATIN COATING COMPOSITION IS APPLIED TO A SUPPORT, THE STEP WHICH COMPRISES MIXING WITH THE GELATIN COATING COMPOSITION, PRIOR TO APPLYING TO THE SUPPORT, 0.1-5%, BASED ON THE WEIGHT OF THE GELATIN, OF A COATING AID HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
48 words
IN A METHOD OF COATING IN WHICH A GELATIN COATING COMPOSITION IS APPLIED TO A SUPPORT, THE STEP WHICH COMPRISES MIXING WITH THE GELATIN COATING COMPOSITION, PRIOR TO APPLYING TO THE SUPPORT, 0.1-5%, BASED ON THE WEIGHT OF THE GELATIN, OF A COATING AID HAVING THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
14 words
A GELATIN-SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING THEREIN A SURFACE ACTIVE MATERIAL HAVING THE FORMULA:
Claim 4
Dependent Claim
14 words
A GELATIN-SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING THEREIN A SURFACE ACTIVE MATERIAL HAVING THE FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |