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US3412177A
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Interpolymerization of acrylonitrile monomer and polymer at an elevated pressure
Assignee: Standard Oil Co
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Filing: 1966-02-28
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Granted: 1968-11-19
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Russell K Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:47
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F16/00; C08F16/12; C08F265/00; C08F265/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2101107A
Cited
US2120006A
Cited
US2369057A
Cited
US2972170A
Cited
GB964533A
Cited
US3296228A
Cited
US3345350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |