US2941986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of acrylonitrile and 1-vinylimidazoles
Assignee: Solutia Inc
•
Filing: 1957-08-02
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Granted: 1960-06-21
•
Expires: 1977-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Julian Keith Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:46
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A BINARY COPOLYMER OF ABOUT 50 PERCENT BY WEIGHT ACRYLONITRILE AND BOUT 50 PERCENT BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF 1-VINYLIMIDAZOLE AND ALKYLSUBSTITUTED 1-VINYL-IMIDAZOLES IN WHICH THE ALKYL GROUP CONTAINS NOT MORE THAN 5 CARBON ATOMS.
Claim 2
Dependent Claim
41 words
A BINARY COPOLYMER OF ABOUT 50 PERCENT BY WEIGHT ACRYLONITRILE AND BOUT 50 PERCENT BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF 1-VINYLIMIDAZOLE AND ALKYLSUBSTITUTED 1-VINYL-IMIDAZOLES IN WHICH THE ALKYL GROUP CONTAINS NOT MORE THAN 5 CARBON ATOMS.
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |