Patent US3817876A successfully refreshed from Google Patents.
US3817876A
Expired / Lapsed
US
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Photosensitive polymer and composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1971-09-16
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Granted: 1974-06-18
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Expires: 1991-09-16
Abstract
Abstract A PHOTOSENSITIVE COMPOSITION COMPRISING A PHOTOSENSITIVE POLYMER CONTAINING AT LEAST ONE A,B-UNSATURATED CARBOXYLIC RADICAL OF THE FORMULA: AR-(C(-Y)=C(-X))N-COO- WHEREIN X AND Y, RESPECTIVELY, REPRESENT A HYDROGEN OR HALOGEN ATOM, OR A CYANO OR NITRO RADICAL; AR REPRESENTS AN ARYL RADICAL OR A SUBSTITUTED ARYL RADICAL; AND N REPRESENTS AN INTEGER OF FROM 1-2, WHICH IS OBTAINED BY REACTING A POLYMER CONTAINING AT LEAST ONE ACTIVE HALOGEN ATOM WITH A SALT OF AN A,B-UNSATURATED CARBOXYLIC ACID HAVING THE FORMULA: AR-(C(-Y)=C(-X))N-COOH WHEREIN THE DEFINITIONS OF X, Y, AR AND N ARE RESPECTIVELY MENTIONED ABOVE; AND A SOLVENT FOR SAID PHOTOSENSITIVE POLYMER.
Inventors
- 👤 H Fukutani
- 👤 K Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:34
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/3324; C08G65/3326; C08G65/333; C08G65/33303; C08G65/33317
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |