US2708665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of vinyl benzal acetophenone polymers
Assignee: Eastman Kodak Co
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Filing: 1951-09-13
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Granted: 1955-05-17
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Expires: 1971-09-13
Abstract
No abstract record available.
Inventors
- 👤 Cornelius C Unruh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:05
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F8/00; C08F8/10; C08F2810/00; C08F2810/30; Y; Y10; Y10S; Y10S522/00; Y10S522/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
THE METHOD FOR PREPARING A SOLVENT-SOLUBLE LIGHTSENSITIVE VINYL BENZAL ACETOPHENONE POLYMER WHICH COMPRISES ACYLATING A POLYMER OF A COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Independent Claim
23 words
THE METHOD FOR PREPARING A SOLVENT-SOLUBLE LIGHTSENSITIVE VINYL BENZAL ACETOPHENONE POLYMER WHICH COMPRISES ACYLATING A POLYMER OF A COMPOUND HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2566302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |