US2589232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing stabilized fatty acid nitriles
Assignee: Hercules Powder Co
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Filing: 1950-03-14
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Granted: 1952-03-18
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Expires: 1970-03-14
Abstract
No abstract record available.
Inventors
- 👤 Drew John
- 👤 Joe C Funderburk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:03
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/04; C; C07; C07C; C07C253/00; C07C253/22; B01J2231/00; B01J2231/30; B01J2231/34; B01J2231/341
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
THE PROCESS OF PREPARING AN ALIPHATIC NITRILE WHICH COMPRISES REACTING FATTY ACIDS HAVING 12 TO 18 CARBON ATOMS IN LIQUID PHASE WITH GASEOUS AMMONIA IN THE PRESENCE OF A SALT OF SAID FATTY ACIDS AND A METAL OF THE GROUP CONSISTING OF CALCIUM AND ZINC.
Claim 2
Dependent Claim
45 words
THE PROCESS OF PREPARING AN ALIPHATIC NITRILE WHICH COMPRISES REACTING FATTY ACIDS HAVING 12 TO 18 CARBON ATOMS IN LIQUID PHASE WITH GASEOUS AMMONIA IN THE PRESENCE OF A SALT OF SAID FATTY ACIDS AND A METAL OF THE GROUP CONSISTING OF CALCIUM AND ZINC.
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) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |