US3297742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for reacting hydrogen cyanide with olefins
Assignee: EIDP Inc
•
Filing: 1963-10-23
•
Granted: 1967-01-10
•
Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 Jr George Clarke Monroe
- 👤 Hammer George Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:01
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/08; C07C253/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR THE MANUFACTURE OF ALIPHATIC NITRILES WHICH COMPRISES PASSING A MIXTURE OF HYDROGEN CYANIDE AND A LOWER ALIPHATIC OLEFIN OVER A CATALYST CONSISTING ESSENTIALLY OF NICKEL CYANIDE AT A TEMPERATURE IN THE RANGE BETWEEN ABOUT 250*C. AND 400*C. AND THEREAFTER RECOVERING AN ALIPHATIC NITRILE FORMED BY THE ADDITION OF HYDROGEN CYANIDE TO THE DOUBLE BOND OF THE SAID OLEFIN FROM THE REACTION PRODUCT.
Claim 2
Dependent Claim
65 words
A PROCESS FOR THE MANUFACTURE OF ALIPHATIC NITRILES WHICH COMPRISES PASSING A MIXTURE OF HYDROGEN CYANIDE AND A LOWER ALIPHATIC OLEFIN OVER A CATALYST CONSISTING ESSENTIALLY OF NICKEL CYANIDE AT A TEMPERATURE IN THE RANGE BETWEEN ABOUT 250*C. AND 400*C. AND THEREAFTER RECOVERING AN ALIPHATIC NITRILE FORMED BY THE ADDITION OF HYDROGEN CYANIDE TO THE DOUBLE BOND OF THE SAID OLEFIN FROM THE REACTION PRODUCT.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |