US2759953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition of organic acids to the double bond of unsaturated fatty compounds
Assignee: Individual
•
Filing: 1955-09-07
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Granted: 1956-08-21
•
Expires: 1975-09-07
Abstract
No abstract record available.
Inventors
- 👤 Hogan B Knight
- 👤 Ronald E Koos
- 👤 Swern Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:34
CPC Classifications
C; C11; C11C; C11C3/00; C07; C07C; C07C59/00; C07C59/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
THE PROCESS COMPRISING TREATING AN OLEFINIC FATTY COMPOUND WITH A SUBSTANTIALLY ANHYDROUS ALIPHATIC MONOCARBOXYLIC ACID HAVING NOT MORE THAN TWO CARBON ATOMS IN THE PRESENCE OF A CATALYTIC AMOUNT OF PERCHLORIC ACID AND AT A TEMPERATURE IN THE RANGE FROM ABOUT 70* C. TO THE BOILING POINT OF THE REACTION MIXTURE.
Claim 2
Dependent Claim
51 words
THE PROCESS COMPRISING TREATING AN OLEFINIC FATTY COMPOUND WITH A SUBSTANTIALLY ANHYDROUS ALIPHATIC MONOCARBOXYLIC ACID HAVING NOT MORE THAN TWO CARBON ATOMS IN THE PRESENCE OF A CATALYTIC AMOUNT OF PERCHLORIC ACID AND AT A TEMPERATURE IN THE RANGE FROM ABOUT 70* C. TO THE BOILING POINT OF THE REACTION MIXTURE.
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) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |