Patent US2736739A successfully refreshed from Google Patents.
US2736739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of nitriles
Assignee: EIDP Inc
•
Filing: 1952-08-05
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Granted: 1956-02-28
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Expires: 1972-08-05
Abstract
No abstract record available.
Inventors
- 👤 David C England
- 👤 Gene V Mock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:45
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE PROCESS FOR THE PREPARATION OF NITRILES WHICH COMPRISES REACTING NITRIC OXIDE WITH AN ALKYL-SUBSTITUTED ORGANIC COMPOUND CONTAINING AT LEAST ONE ALKYL GROUP DIRECTLY ATTACHED TO A CARBON ATOM WHICH IS IN TURN ATTACHED TO ANOTHER CARBON ATOM BY A DOUBLE BOND, SAID REACTION BEING CARRIED OUT AT TEMPERATURES BETWEEN 400* AND 700* C. IN THE PRESENCE OF A DEHYDROGENATION CATALYST.
Claim 2
Dependent Claim
61 words
THE PROCESS FOR THE PREPARATION OF NITRILES WHICH COMPRISES REACTING NITRIC OXIDE WITH AN ALKYL-SUBSTITUTED ORGANIC COMPOUND CONTAINING AT LEAST ONE ALKYL GROUP DIRECTLY ATTACHED TO A CARBON ATOM WHICH IS IN TURN ATTACHED TO ANOTHER CARBON ATOM BY A DOUBLE BOND, SAID REACTION BEING CARRIED OUT AT TEMPERATURES BETWEEN 400* AND 700* C. IN THE PRESENCE OF A DEHYDROGENATION CATALYST.
References Cited (Backward Citations)
US1920795A
Cited
US2076953A
Cited
US2083824A
Cited
US2499055A
Cited
US2481826A
Cited
US2553331A
Cited
US2463456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |