US3396018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffusion transfer system
Assignee: Eastman Kodak Co
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Filing: 1963-05-17
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Granted: 1968-08-06
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 Dorothy J Beavers
- 👤 Guernsey K Edmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:34
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/06; G03F7/07; G03C; G03C8/00; G03C8/02; G03C8/04; G03C8/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR OBTAINING AN IMAGE BY THE SILVER HALIDE DIFFUSION TRANSFER METHOD ON AN IRREGULAR SURFACE COMPRISING DEVELOPING AN EXPOSED SILVER HALIDE EMULSION HAVING THEREON A SUBSTANTIALLY DRIED DOWN OVERCOAT OF AN ALKALI PERMEABLE POLYSACCHARIDE WITH A SILVER HALIDE DEVELOPER SOLUTION HVING A VISCOSITY OF 1.0 TO 300 CENTIPOISES CONTAING A SILVER PRECIPITATING NUCLEI AND A SILVER HALIDE SOLVENT, AND CONTACTING THE SAID POLYSACCHARIDE WHILE STILL WET WITH THE SAID DEVELOPER AGAINST A RECEIVING SUPPORT.
Claim 2
Dependent Claim
76 words
A PROCESS FOR OBTAINING AN IMAGE BY THE SILVER HALIDE DIFFUSION TRANSFER METHOD ON AN IRREGULAR SURFACE COMPRISING DEVELOPING AN EXPOSED SILVER HALIDE EMULSION HAVING THEREON A SUBSTANTIALLY DRIED DOWN OVERCOAT OF AN ALKALI PERMEABLE POLYSACCHARIDE WITH A SILVER HALIDE DEVELOPER SOLUTION HVING A VISCOSITY OF 1.0 TO 300 CENTIPOISES CONTAING A SILVER PRECIPITATING NUCLEI AND A SILVER HALIDE SOLVENT, AND CONTACTING THE SAID POLYSACCHARIDE WHILE STILL WET WITH THE SAID DEVELOPER AGAINST A RECEIVING SUPPORT.
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |