Patent US3493380A successfully refreshed from Google Patents.
US3493380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoresist composition
Assignee: Eastman Kodak Co
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Filing: 1966-07-01
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Granted: 1970-02-03
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Expires: 1986-07-01
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Rauner
- 👤 Lawrence E Martinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:37
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PHOTOSENSITIVE POLYMERIC COATING COMPOSITION COMPRISING (1) A PHENOLIC RESIN, AND (2) AN ORGANIC SOLVENT SOLUBLE, LIGHT-SENSITIVE, POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) PHOTOINSOLUBILIZABLE CINNAMIC ACID ESTERS OF HYDROXYL CONTAINING LINEAR POLYMERS, AND (B) PHOTOINSOLUBILIZABLE ARYL AZIDE SENSITIZED RUBBER MATERIALS.
Claim 2
Dependent Claim
43 words
A PHOTOSENSITIVE POLYMERIC COATING COMPOSITION COMPRISING (1) A PHENOLIC RESIN, AND (2) AN ORGANIC SOLVENT SOLUBLE, LIGHT-SENSITIVE, POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) PHOTOINSOLUBILIZABLE CINNAMIC ACID ESTERS OF HYDROXYL CONTAINING LINEAR POLYMERS, AND (B) PHOTOINSOLUBILIZABLE ARYL AZIDE SENSITIZED RUBBER MATERIALS.
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) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |