US2604398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive photographic stripping film
Assignee: Eastman Kodak Co
•
Filing: 1947-02-13
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Granted: 1952-07-22
•
Expires: 1967-02-13
Abstract
No abstract record available.
Inventors
- 👤 Soper Alan Kingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:11
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/805; B; B29; B29C; B29C41/00; B29C41/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A SENSITIVE PHOTOGRAPHIC STRIPPING MATERIAL COMPRISING A SUPPORT, A SURFACE LAYER OF WATER REPELLANT ORGANIC DERIVATIVE OF SILICON ON SAID SUPPORT, A SENSITIVE SILVER HALIDE EMULSION LAYER COATED THEREON AND CAPABLE OF BEING COMPLETELY STRIPPED THEREFROM BY PULLING APART AT ROOM TEMPERATURE IN THE DRY STATE .
Claim 2
Dependent Claim
47 words
A SENSITIVE PHOTOGRAPHIC STRIPPING MATERIAL COMPRISING A SUPPORT, A SURFACE LAYER OF WATER REPELLANT ORGANIC DERIVATIVE OF SILICON ON SAID SUPPORT, A SENSITIVE SILVER HALIDE EMULSION LAYER COATED THEREON AND CAPABLE OF BEING COMPLETELY STRIPPED THEREFROM BY PULLING APART AT ROOM TEMPERATURE IN THE DRY STATE .
References Cited (Backward Citations)
GB189918430A
Cited
GB166686A
Cited
US2306222A
Cited
US2436304A
Cited
US2388299A
Cited
US2438736A
Cited
US2477787A
Cited
US2445572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |