US3033677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic processes utilizing photolytic halogen
Assignee: Eastman Kodak Co
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Filing: 1959-06-19
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Granted: 1962-05-08
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Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas I Abbott
- 👤 Edward C Yackel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C5/00; G03C5/26; G03C5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PHOTOGRAPHIC PROCESS WHICH COMPRISES EXPOSING TO A SUBJECT A SUPPORTED LAYER OF A MIXTURE OF, A SOFT WATER-INSOLUBLE ACRYLATE POLYMER OF THE CLASS CONSISTING OF ALKYL ACRYLATE AND ALKYL METHACRYLATE POLYMERS, A POLYALKYLENE OXIDE, A LEUCO BASE OF A TRIPHENYLMETHANE DYE SOLUBLE IN SAID POLYALKYLENE OXIDE AND SILVER BROMIDE UNTIL AN APPRECIABLE AMOUNT OF PHOTOLYTIC BROMIDE HAS BEEN RELEASED FROM THE EXPOSED SILVER BROMIDE HAS OXIDIZED THE LEUCO BASE TO A DYE IN THE REGION OF EXPOSURE, HEATING THE LAYER IN CONTACT WITH A RECEPTION SHEET TO TRANSFER AT LEAST A PORTION OF THE DYE IMAGEWISE FROM THE LAYER TO THE SHEET.
Claim 2
Dependent Claim
103 words
A PHOTOGRAPHIC PROCESS WHICH COMPRISES EXPOSING TO A SUBJECT A SUPPORTED LAYER OF A MIXTURE OF, A SOFT WATER-INSOLUBLE ACRYLATE POLYMER OF THE CLASS CONSISTING OF ALKYL ACRYLATE AND ALKYL METHACRYLATE POLYMERS, A POLYALKYLENE OXIDE, A LEUCO BASE OF A TRIPHENYLMETHANE DYE SOLUBLE IN SAID POLYALKYLENE OXIDE AND SILVER BROMIDE UNTIL AN APPRECIABLE AMOUNT OF PHOTOLYTIC BROMIDE HAS BEEN RELEASED FROM THE EXPOSED SILVER BROMIDE HAS OXIDIZED THE LEUCO BASE TO A DYE IN THE REGION OF EXPOSURE, HEATING THE LAYER IN CONTACT WITH A RECEPTION SHEET TO TRANSFER AT LEAST A PORTION OF THE DYE IMAGEWISE FROM THE LAYER TO THE SHEET.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |