US2497024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical preparation of alpha-amino-n-butyric acid and n-benzoyl derivative
Assignee: Individual
•
Filing: 1945-10-05
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Granted: 1950-02-07
•
Expires: 1965-10-05
Abstract
No abstract record available.
Inventors
- 👤 John H Billman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:48
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
THE PROCESS OF PRODUCING A-AMINO-N-BUTYRIC ACID, WHICH CONSISTS IN REACTING B-AMINO-N-BUTANOL WITH BENZOYL CHLORIDE, ELECTROCHEMICALLY OXIDIZING THE RESULTING N-BENZOYL-B-AMINO-N-BUTANOL BY PASSING A MODERATE ELECTRIC CURRENT THROUGH AN ACIDIC AQUEOUS SOLUTION CONTAINING IT, AND REMOVING THE BENZOYL RADICAL FROM THE RESULTING N-BENZOYL-A-AMINO-N-BUTYRIC ACID BY HYDROLYSIS.
References Cited (Backward Citations)
US789269A
Cited
US2394230A
Cited
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 |