US3291608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhanced activity of nuclei for physical development
Assignee: Eastman Kodak Co
•
Filing: 1964-02-03
•
Granted: 1966-12-13
•
Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Elins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:07
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/485; G03C1/04; G03C8/00; G03C8/24; G03C8/26; G03C8/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PHOTOGRAPHIC DEVELOPMENT PROCESS WHEREIN A PHOTOGRAPHIC MATERIAL COMPRISING A SUPPORT HAVING THEREON A LAYER OF A SILVER HALIDE PHOTOGRAPHIC EMULSION AND A LAYER CONTAINING METALLIC PHYSICAL DEVELOPMENT NUCLEI FORMED IN SITU IN CHLORANIL-MODIFIED GELATIN IS EXPOSED AND DEVELOPED BY A PHYSICAL PHOTOGRAPHIC DEVELOPER.
Claim 2
Dependent Claim
44 words
A PHOTOGRAPHIC DEVELOPMENT PROCESS WHEREIN A PHOTOGRAPHIC MATERIAL COMPRISING A SUPPORT HAVING THEREON A LAYER OF A SILVER HALIDE PHOTOGRAPHIC EMULSION AND A LAYER CONTAINING METALLIC PHYSICAL DEVELOPMENT NUCLEI FORMED IN SITU IN CHLORANIL-MODIFIED GELATIN IS EXPOSED AND DEVELOPED BY A PHYSICAL PHOTOGRAPHIC DEVELOPER.
References Cited (Backward Citations)
USRE25885E
Cited
US3020155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |