US2604388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive coating
Assignee: Eastman Kodak Co
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Filing: 1951-10-13
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Granted: 1952-07-22
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Expires: 1971-10-13
Abstract
No abstract record available.
Inventors
- 👤 Henry C Staehle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:16
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/04; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/108; Y10S430/109; Y10S430/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A SENSITIVE PHOTOGRAPHIC RESIST MATERIAL COMPRISING A SUPPORT HAVING THEREON A LAYER OF BICHROMATED HYDROPHILIC COLLOID CONTAINING AN AQUEOUS COLLOIDAL DISPERSION OF A WATER-INSOLUBLE SOFT ACRYLATE RESIN SELECTED FROM THE CLASS CONSISTING OF POLYMETHYL ACRYLATE, POLYETHYL ACRYLATE, METHYL ACRYLATE-ETHYL ACRYLATE COPOLYMERS, METHYL ACRYLATE-ACRYLONITRILE COPOLYMERS CONTAINING NOT MORE THAN 25% ACRYLONITRILE, ETHYL ACRYLATE-ACRYLONITRILE, COPOLYMERS CONTAINING NOT MORE THAN 25% ACRYLONITRILE, MIXTURES OF SAID POLYMERS AND COPOLYMERS, AND MIXTURES OF ETHYL ACRYLATE-ACRYLONITRILE COPOLYMERS CONTAINING NOT MORE THAN 25% ACRYLONITRILE AND POLYSTYRENE AQUEOUS DISPERSION CONTAINING NOT MORE THAN ABOUT 60% POLYSTYRENE DISPERSION, SAID COMPOSITION BEING ADAPTED TO PRODUCE A LIGHT-SENSITIVE COATING IN WHICH A REVERSAL IMAGE CAN BE FORMED UPON EXPOSURE TO LIGHT AND DEVELOPMENT IN AN AQUEOUS SOLUTION.
Claim 2
Dependent Claim
116 words
A SENSITIVE PHOTOGRAPHIC RESIST MATERIAL COMPRISING A SUPPORT HAVING THEREON A LAYER OF BICHROMATED HYDROPHILIC COLLOID CONTAINING AN AQUEOUS COLLOIDAL DISPERSION OF A WATER-INSOLUBLE SOFT ACRYLATE RESIN SELECTED FROM THE CLASS CONSISTING OF POLYMETHYL ACRYLATE, POLYETHYL ACRYLATE, METHYL ACRYLATE-ETHYL ACRYLATE COPOLYMERS, METHYL ACRYLATE-ACRYLONITRILE COPOLYMERS CONTAINING NOT MORE THAN 25% ACRYLONITRILE, ETHYL ACRYLATE-ACRYLONITRILE, COPOLYMERS CONTAINING NOT MORE THAN 25% ACRYLONITRILE, MIXTURES OF SAID POLYMERS AND COPOLYMERS, AND MIXTURES OF ETHYL ACRYLATE-ACRYLONITRILE COPOLYMERS CONTAINING NOT MORE THAN 25% ACRYLONITRILE AND POLYSTYRENE AQUEOUS DISPERSION CONTAINING NOT MORE THAN ABOUT 60% POLYSTYRENE DISPERSION, SAID COMPOSITION BEING ADAPTED TO PRODUCE A LIGHT-SENSITIVE COATING IN WHICH A REVERSAL IMAGE CAN BE FORMED UPON EXPOSURE TO LIGHT AND DEVELOPMENT IN AN AQUEOUS SOLUTION.
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) | 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 |