Patent US2701244A successfully refreshed from Google Patents.
US2701244A
Expired / Lapsed
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Method for rendering acrylonitrile polymers dye-receptive
Assignee: Solutia Inc
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Filing: 1953-06-12
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Granted: 1955-02-01
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Expires: 1973-06-12
Abstract
No abstract record available.
Inventors
- 👤 George E Ham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:36
CPC Classifications
C; C08; C08F; C08F8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A PROCESS FOR INCREASING THE DYE-RECEPTIVITY OF ACRYLONITRILE POLYMERS WHICH COMPRISES TREATING A POLY MER OF AT LEAST 85 PERCENT ACRYLONITRILE AND UP TO 15 PERCENT OF OTHER OLEFINIC MONOMERS, WITH FROM 2 TO 20 PERCENT OF THE STOICHIOMETRIC EQUIVALENT OF THE NITRILE GROUPS OF A PYRIDINECARBOXYLIC ESTER HAVING THE FORMULA:
Claim 2
Dependent Claim
51 words
A PROCESS FOR INCREASING THE DYE-RECEPTIVITY OF ACRYLONITRILE POLYMERS WHICH COMPRISES TREATING A POLY MER OF AT LEAST 85 PERCENT ACRYLONITRILE AND UP TO 15 PERCENT OF OTHER OLEFINIC MONOMERS, WITH FROM 2 TO 20 PERCENT OF THE STOICHIOMETRIC EQUIVALENT OF THE NITRILE GROUPS OF A PYRIDINECARBOXYLIC ESTER HAVING THE FORMULA:
References Cited (Backward Citations)
US2118864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |