US2698797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed packet photographic emulsions using resin couplers
Assignee: Eastman Kodak Co
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Filing: 1953-03-30
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Granted: 1955-01-04
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Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Godowsky Leopold
- 👤 Louis M Minsk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:15
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3882; G03C7/32; G03C7/327; G03C7/3275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A LIGHT SENSITIVE PHOTOGRAPHIC EMULSION COMPRISING A MIXTURE OF HYDROPHILIC, WATER-PERMEABLE COLLOID, SILVER HALIDE SENSITIVE TO AT LEAST ONE REGION BUT LESS THAN ALL REGIONS OF THE VISIBLE SPECTRUM, AND A WATER-INSOLUBLE NONDIFFUSING RESIN-COUPLER COMPOUND SELECTED FROM THOSE COMPOUNDS HAVING THE RECURRING STRUCTURE
Claim 2
Dependent Claim
43 words
A LIGHT SENSITIVE PHOTOGRAPHIC EMULSION COMPRISING A MIXTURE OF HYDROPHILIC, WATER-PERMEABLE COLLOID, SILVER HALIDE SENSITIVE TO AT LEAST ONE REGION BUT LESS THAN ALL REGIONS OF THE VISIBLE SPECTRUM, AND A WATER-INSOLUBLE NONDIFFUSING RESIN-COUPLER COMPOUND SELECTED FROM THOSE COMPOUNDS HAVING THE RECURRING STRUCTURE
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |