US2496659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of nitriles
Assignee: ExxonMobil Oil Corp
•
Filing: 1947-07-19
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Granted: 1950-02-07
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Expires: 1967-07-19
Abstract
No abstract record available.
Inventors
- 👤 William I Denton
- 👤 Richard B Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/18; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR THE PRODUCTION OF NITRILES HAVING AT LEAST TWO CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING AN OLEFINIC HYDROCARBON CONTAINING UP TO ABOUT TEN CARBON ATOMS PER MOLECULE WITH AMMONIA, IN GASEOUS PHASE, AT TEMPERATURES FALLING WITHIN THE RANGE VARYING BETWEEN ABOUT 850*F. AND ABOUT 1075*F., AND IN THE PRESENCE OF A CATLYST INCLUDING A METAL SALT SELECTED FROM THE GROUP CONSISTING OF THE METAL SALTS OF MOLYBDIC ACID AND THE METAL SALTS OF TUNGSTIC ACID.
Claim 2
Dependent Claim
78 words
A PROCESS FOR THE PRODUCTION OF NITRILES HAVING AT LEAST TWO CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING AN OLEFINIC HYDROCARBON CONTAINING UP TO ABOUT TEN CARBON ATOMS PER MOLECULE WITH AMMONIA, IN GASEOUS PHASE, AT TEMPERATURES FALLING WITHIN THE RANGE VARYING BETWEEN ABOUT 850*F. AND ABOUT 1075*F., AND IN THE PRESENCE OF A CATLYST INCLUDING A METAL SALT SELECTED FROM THE GROUP CONSISTING OF THE METAL SALTS OF MOLYBDIC ACID AND THE METAL SALTS OF TUNGSTIC ACID.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |