US2494054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic photographic film
Assignee: Eastman Kodak Co
•
Filing: 1948-04-06
•
Granted: 1950-01-10
•
Expires: 1968-04-06
Abstract
No abstract record available.
Inventors
- 👤 Gale F Nadeau
- 👤 Walter R White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:11
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A CELLULOSE ESTER FILM SUPPORT CARRYING A SILVER HALIDE EMULSION LAYER AND SAID ELEMENT CONTAINING SUCCINONITRILE UNIFORMLY DISTRIBUTED IN A LAYER THEREOF.
Claim 2
Dependent Claim
27 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A CELLULOSE ESTER FILM SUPPORT CARRYING A SILVER HALIDE EMULSION LAYER AND SAID ELEMENT CONTAINING SUCCINONITRILE UNIFORMLY DISTRIBUTED IN A LAYER THEREOF.
References Cited (Backward Citations)
US2380940A
Cited
US2436007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |