Patent US2870704A successfully refreshed from Google Patents.
US2870704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction of dye absorption in hardened gelatin relief matrices
Assignee: Technicolor Corp
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Filing: 1957-10-08
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Granted: 1959-01-27
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Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Richard J Goldberg
- 👤 Jr Earl M Olds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:01
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; G03C7/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
FOR REDUCING THE DYE ABSORPTION OF A HARDENED GELATIN RELIEF MATRIX WHICH ABSORBS DYE IN EXCESS OF THE AMOUNT NECESSARY CORRECTLY TO REPRODUCE A COLOR ASPECT OF A SCENE, THE METHOD WHICH COMPRISES TREATING THE MATRIX WITH A PROTEOLYTIC ENZYME BATH FOR A PREDETERMINED TIME SUFFICIENT TO SOLUBILIZE ONLY A PORTION OF THE GELATIN AND DISSOLVING SAID GELATIN PORTION WITH A SOLVENT, THEREBY REDUCING THE DYE ABSORPTION WITHOUT DESTROYING THE CONTRAST.
Claim 2
Dependent Claim
71 words
FOR REDUCING THE DYE ABSORPTION OF A HARDENED GELATIN RELIEF MATRIX WHICH ABSORBS DYE IN EXCESS OF THE AMOUNT NECESSARY CORRECTLY TO REPRODUCE A COLOR ASPECT OF A SCENE, THE METHOD WHICH COMPRISES TREATING THE MATRIX WITH A PROTEOLYTIC ENZYME BATH FOR A PREDETERMINED TIME SUFFICIENT TO SOLUBILIZE ONLY A PORTION OF THE GELATIN AND DISSOLVING SAID GELATIN PORTION WITH A SOLVENT, THEREBY REDUCING THE DYE ABSORPTION WITHOUT DESTROYING THE CONTRAST.
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) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |