Patent US2696478A successfully refreshed from Google Patents.
US2696478A
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US
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Compositions of acrylonitrile polymers dissolved in 1-methyl-2-pyridone
Assignee: Solutia Inc
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Filing: 1952-07-26
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Granted: 1954-12-07
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Expires: 1972-07-26
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:45
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/096; C08L; C08L33/00; C08L33/18; C08L33/20; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A NEW COMPOSITION OF MATTER COMPRISING A HOMOGENEOUS MISCIBLE MIXTURE OF 1-METHYL-2-PYRIIDONE AND A POLYMER OF MONOMERIC SUBSTANCES OF WHICH ACRYLONITRILE IS AT LEAST 70% BY WEIGHT OF THE POLYMERIZABLE CONTENT.
Claim 2
Dependent Claim
31 words
A NEW COMPOSITION OF MATTER COMPRISING A HOMOGENEOUS MISCIBLE MIXTURE OF 1-METHYL-2-PYRIIDONE AND A POLYMER OF MONOMERIC SUBSTANCES OF WHICH ACRYLONITRILE IS AT LEAST 70% BY WEIGHT OF THE POLYMERIZABLE CONTENT.
References Cited (Backward Citations)
US2404719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |