US2721804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of organic compounds
Assignee: Universal Oil Products Co
•
Filing: 1953-12-16
•
Granted: 1955-10-25
•
Expires: 1973-12-16
Abstract
No abstract record available.
Inventors
- 👤 Robert H Rosenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:26
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C09K15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A METHOD OF STABILIZING A FATTY MATERIAL AGAINST RANCIDITY WHICH COMPRISES INCORPORATING THEREIN A STABLIZING AMOUNT OF AN ANTIOXIDANT COMPOSITION COMPRISING FROM ABOUT 1 TO ABOUT 20 PARTS BY WEIGHT OF NDGA AND FROM ABOUT 1 TO ABOUT 20 PARTS BY WEIGHT OF 2,4,6-TRIALKYLPHENOL.
Claim 2
Independent Claim
44 words
A METHOD OF STABILIZING A FATTY MATERIAL AGAINST RANCIDITY WHICH COMPRISES INCORPORATING THEREIN A STABLIZING AMOUNT OF AN ANTIOXIDANT COMPOSITION COMPRISING FROM ABOUT 1 TO ABOUT 20 PARTS BY WEIGHT OF NDGA AND FROM ABOUT 1 TO ABOUT 20 PARTS BY WEIGHT OF 2,4,6-TRIALKYLPHENOL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |