US3230246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing olefinically unsaturated nitriles
Assignee: Standard Oil Co
•
Filing: 1962-11-28
•
Granted: 1966-01-18
•
Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 James L Callahan
- 👤 Ernest C Milberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J21/00; B01J21/06; B01J21/08; B01J27/00; B01J27/14; B01J27/186; B01J27/188; C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS FOR PREPARING AN OLEFINICALLY UNSATURATED NITRILE HAVING THE STRUCTURE
Claim 2
Dependent Claim
11 words
A PROCESS FOR PREPARING AN OLEFINICALLY UNSATURATED NITRILE HAVING THE STRUCTURE
References Cited (Backward Citations)
US2433798A
Cited
US2471085A
Cited
US3009943A
Cited
US2847360A
Cited
US2823219A
Cited
US2904580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |