US3088940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hompolymerization of acrylonitrile with catalyst compositions comprising organo tin hydride and metal halide complexes
Assignee: Monsanto Chemicals Ltd
•
Filing: 1960-06-08
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Granted: 1963-05-07
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Expires: 1980-06-08
Abstract
No abstract record available.
Inventors
- 👤 Lloyd T Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:14
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/42; C08F20/44; C08F2/00; C08F2/36; Y; Y10; Y10S; Y10S260/00; Y10S260/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PROCESS OF THE HOMOPOLYMERIZATION OF ACRYLONITRILE WHICH COMPRISES REACTING THE SAME IN THE PRESENCE OF A CATALYTIC AMOUNT OF A COMPLEX CATALYST OBTAINED BY THE REACTION OF AN ORGANO TIN HYDRIDE OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
36 words
A PROCESS OF THE HOMOPOLYMERIZATION OF ACRYLONITRILE WHICH COMPRISES REACTING THE SAME IN THE PRESENCE OF A CATALYTIC AMOUNT OF A COMPLEX CATALYST OBTAINED BY THE REACTION OF AN ORGANO TIN HYDRIDE OF THE GENERAL FORMULA:
References Cited (Backward Citations)
BE545968A
Cited
US2846427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |