US2511802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic antioxidant
Assignee: —
•
Filing: —
•
Granted: 1950-06-13
•
Expires: 1967-06-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/742; C; C11; C11B; C11B5/00; C11B5/0021; C11B5/0028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ANTIOXIDANT COMPOSITION COMPRISING AN ORGANIC ACID OF THE CLASS CONSISTING OF BENZOIC, FUMARIC, TARTARIC AND CITRIC, AND AN ESTER OF THE CLASS CONSISTING OF LOW MOLECULAR WEIGHT ALKYL ESTERS OF GALLIC ACID AND ASCORBYL ESTERS, THE PROPORTION OF THE ACID BEING 3 TO 5% OF THE TOTAL OF THE ACID AND ESTER AND THE PROPORTION OF THE ESTER BEING 97 TO 50% OF THE TOTAL OF THE ACID AND ESTER, AND IN WHICH THE TOTAL OF THE RESPECTIVE PROPORTIONS ARE SUCH AS TO GIVE A SYNERGISTIC EFFECT IN SAID ANTIOXIDANT COMPOSITION.
Claim 2
Dependent Claim
92 words
AN ANTIOXIDANT COMPOSITION COMPRISING AN ORGANIC ACID OF THE CLASS CONSISTING OF BENZOIC, FUMARIC, TARTARIC AND CITRIC, AND AN ESTER OF THE CLASS CONSISTING OF LOW MOLECULAR WEIGHT ALKYL ESTERS OF GALLIC ACID AND ASCORBYL ESTERS, THE PROPORTION OF THE ACID BEING 3 TO 5% OF THE TOTAL OF THE ACID AND ESTER AND THE PROPORTION OF THE ESTER BEING 97 TO 50% OF THE TOTAL OF THE ACID AND ESTER, AND IN WHICH THE TOTAL OF THE RESPECTIVE PROPORTIONS ARE SUCH AS TO GIVE A SYNERGISTIC EFFECT IN SAID ANTIOXIDANT COMPOSITION.
References Cited (Backward Citations)
US2444307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |