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US2673151A
Expired / Lapsed
US
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Photosensitive resin composition
Assignee: PPG Industries Inc
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Filing: 1952-03-13
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Granted: 1954-03-23
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Expires: 1972-03-13
Abstract
No abstract record available.
Inventors
- 👤 Howard L Gerhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; G03F7/032; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AS A NEW COMPOSITION OF MATTER, A COPOLYMERIZABLE MIXTURE OF (A) A POLYESTER OF AN ETHYLENICALLY UNSATURATED, ALPHA-BETA DICARBOXYLIC ACID AND A DIHYDRIC ALCOHOL, (B) A POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUND AND (C) AN EFFECTIVE AMOUNT OF PHOTOSENSITIZING AGENT WHICH IS AN ORGANIC, SULFUR-CONTAINING, RUBBER VULCANIZATION ACCELERATOR IN EFFECTIVE AMOUNT.
Claim 2
Dependent Claim
49 words
AS A NEW COMPOSITION OF MATTER, A COPOLYMERIZABLE MIXTURE OF (A) A POLYESTER OF AN ETHYLENICALLY UNSATURATED, ALPHA-BETA DICARBOXYLIC ACID AND A DIHYDRIC ALCOHOL, (B) A POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUND AND (C) AN EFFECTIVE AMOUNT OF PHOTOSENSITIZING AGENT WHICH IS AN ORGANIC, SULFUR-CONTAINING, RUBBER VULCANIZATION ACCELERATOR IN EFFECTIVE AMOUNT.
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) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |