US2938008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blend of acrylonitrile polymer with polybetacyanoethyl vinyl ether, solutions thereof, shaped article therefrom, and method of making same
Assignee: EIDP Inc
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Filing: 1957-07-29
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Granted: 1960-05-24
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Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Hare Weston Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:01
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
COMPOSITION OF MATTER COMPRISING A POLYMER SELECTED FROM THE GROUP CONSISTING OF (1) POLYACRYLONITRILE AND (2) A COPOLYMER OF AT LEAST ABOUT 85% BY WEIGHT OF ACRYLONITRILE WITH AT LEAST ONE COPOLYMERIZABLE MONOMER CONTAINING AT LEAST ONE ETHYLENICALLY UNSATURATED GROUP AND FROM ABOUT 2% TO ABOUT 25% BY WEIGHT POLY(BETA-CYANOETHYL VINYL ETHER), BASED ON THE TOTAL POLYMER WEIGHT.
Claim 2
Dependent Claim
58 words
COMPOSITION OF MATTER COMPRISING A POLYMER SELECTED FROM THE GROUP CONSISTING OF (1) POLYACRYLONITRILE AND (2) A COPOLYMER OF AT LEAST ABOUT 85% BY WEIGHT OF ACRYLONITRILE WITH AT LEAST ONE COPOLYMERIZABLE MONOMER CONTAINING AT LEAST ONE ETHYLENICALLY UNSATURATED GROUP AND FROM ABOUT 2% TO ABOUT 25% BY WEIGHT POLY(BETA-CYANOETHYL VINYL ETHER), BASED ON THE TOTAL POLYMER WEIGHT.
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) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |