Patent US2719087A successfully refreshed from Google Patents.
US2719087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive photographic paper and composition
Assignee: Eastman Kodak Co
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Filing: 1953-05-25
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Granted: 1955-09-27
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Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Knox
- 👤 Gordon D Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:45
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043; G03C1/06; G03C1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AS A NEW ARTICLE OF MANUFACTURE, A LIGHT SENSITIVE PHOTOGRAPHIC PAPER, THE ARTICLE BEING COMPRISED OF A PHOTOGRAPHIC PAPER BASE AND A LIGHT SENSITIVE COATING THEREON, SAID COATING CONTAINING SUBSTANTIAL AMOUNTS OF GELATIN AND SILVER SALTS, AND ALSO CONTAINING AS AN ESSENTIAL COMPONENT 0.01 TO 0.02% BY WEIGHT OF THE COATING OF A CHEMICAL HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
58 words
AS A NEW ARTICLE OF MANUFACTURE, A LIGHT SENSITIVE PHOTOGRAPHIC PAPER, THE ARTICLE BEING COMPRISED OF A PHOTOGRAPHIC PAPER BASE AND A LIGHT SENSITIVE COATING THEREON, SAID COATING CONTAINING SUBSTANTIAL AMOUNTS OF GELATIN AND SILVER SALTS, AND ALSO CONTAINING AS AN ESSENTIAL COMPONENT 0.01 TO 0.02% BY WEIGHT OF THE COATING OF A CHEMICAL HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |