US2964405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic products containing water-soluble salts of ethyl cellulose chlorophthalate
Assignee: Eastman Kodak Co
•
Filing: 1958-08-08
•
Granted: 1960-12-13
•
Expires: 1978-08-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Talbot
- 👤 William J Priest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:40
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PHOTOSENSITIZED MATERIAL COMPRISING A SUPPORT HAVING THEREON A LAYER OF A SILVER HALIDE PHOTOGRAPHIC EMULSION, THE CARRIER FOR THE SILVER HALIDE OF WHICH COMPRISES 10-100% OF A WATER SOLUBLE SALT OF ETHYL CELLULOSE CHLOROPHTHALATE.
Claim 2
Dependent Claim
35 words
A PHOTOSENSITIZED MATERIAL COMPRISING A SUPPORT HAVING THEREON A LAYER OF A SILVER HALIDE PHOTOGRAPHIC EMULSION, THE CARRIER FOR THE SILVER HALIDE OF WHICH COMPRISES 10-100% OF A WATER SOLUBLE SALT OF ETHYL CELLULOSE CHLOROPHTHALATE.
References Cited (Backward Citations)
US2725293A
Cited
US2861068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |