US2726162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardening of gelatin
Assignee: Eastman Kodak Co
•
Filing: 1951-12-01
•
Granted: 1955-12-06
•
Expires: 1971-12-01
Abstract
No abstract record available.
Inventors
- 👤 Charles F H Allen
- 👤 Thomas T M Laakso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:26
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF GELATIN CONTAINING THEREIN AT LEAST 0.025 PART, PER 15 1/2 PARTS OF GELATIN, OF A HARDENING AGENT HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
28 words
A COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF GELATIN CONTAINING THEREIN AT LEAST 0.025 PART, PER 15 1/2 PARTS OF GELATIN, OF A HARDENING AGENT HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2121616A
Cited
US2240476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |