US3686150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Functional terpolymers of n-vinyl lactams
Assignee: GAF Chemicals Corp
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Filing: 1970-08-20
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Granted: 1972-08-22
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Expires: 1990-08-20
Abstract
Abstract FUNCTIONAL TERPOLYMERS ARE DESCRIBED OF AN N-VINYL LACTAM, A MONO OR HALF ESTER OF AN UNSATURATED DICARBOXYLIC ACID, AND AN ETHYLENICALLY UNSATURATED COMPOUND (E.G. AN ALKYL), WHICH ARE USEFUL FOR FORMING COATINGS, SIZES, POLISHES, ADHESIVES AND IN RELATED AREAS.
Inventors
- 👤 Eugne S Barabas
- 👤 Marvin M Fein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:00
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/06; C08F226/10; C08F210/00; C08F210/02; C08F218/00; C08F218/02; C08F218/04; C08F218/08; C08F26/00; C08F26/06
Claims Analysis
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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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |