US2610120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitization of polymeric cinnamic acid esters
Assignee: Eastman Kodak Co
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Filing: 1950-03-09
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Granted: 1952-09-09
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Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Louis M Minsk
- 👤 Werter P Van Deusen
- 👤 Earl M Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:41
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F8/00; C08F8/14; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/109; Y10S430/111; Y10S430/114; Y10S430/12; Y10S430/126; Y10S430/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PHOTOMECHANICAL RESIST COMPOSITION COMPRISING A CINNAMIC ACID ESTER OF POLYVINYL ALCOHOL AS A COMBINED CARRIER AND LIGHT-SENSITIVE MATERIAL, AND AS A SENSITIZER FOR THE COMPOSITION A NITRO ARYL COMPOUND HAVING A NUCLEUS CONTAINING FROM 6 TO 10 CARBON ATOMS, FROM 1 TO 3 NITRO GROUPS BEING ATTACHED TO SAID NUCLEUS, THE MONO-NITRO COMPOUNDS BEING FREE OF AMINO, HYDROXYL AND FORMYL GROUPS IN A POSITION ORTHO TO THE NITRO GROUP, SAID NITRO ARYL COMPOUNDS BEING FREE OF AN AMINO AND A HYDROXYL GROUP IN POSITIONS ORTHO TO EACH OTHER, AND FREE OF CARBOXYL AND SULFO GROUPS.
Claim 2
Dependent Claim
96 words
A PHOTOMECHANICAL RESIST COMPOSITION COMPRISING A CINNAMIC ACID ESTER OF POLYVINYL ALCOHOL AS A COMBINED CARRIER AND LIGHT-SENSITIVE MATERIAL, AND AS A SENSITIZER FOR THE COMPOSITION A NITRO ARYL COMPOUND HAVING A NUCLEUS CONTAINING FROM 6 TO 10 CARBON ATOMS, FROM 1 TO 3 NITRO GROUPS BEING ATTACHED TO SAID NUCLEUS, THE MONO-NITRO COMPOUNDS BEING FREE OF AMINO, HYDROXYL AND FORMYL GROUPS IN A POSITION ORTHO TO THE NITRO GROUP, SAID NITRO ARYL COMPOUNDS BEING FREE OF AN AMINO AND A HYDROXYL GROUP IN POSITIONS ORTHO TO EACH OTHER, AND FREE OF CARBOXYL AND SULFO GROUPS.
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) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |