US3930047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fat or oil composition stabilized with polystyrlphenol antioxidant
Assignee: Dynapol Corp
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Filing: 1974-03-11
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Granted: 1975-12-30
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Expires: 1994-03-11
Abstract
Abstract Polymeric phenols of the formula WHEREIN N IS AN INTEGER FROM 3 TO 2,000, R1 is a lower alkyl and R2 is hydrogen or a lower alkyl, are disclosed. Their preparation and preferred use as antioxidants, especially nonabsorbable food antioxidants, are also disclosed.
Inventors
- 👤 James A Dale
- 👤 William J Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:49
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; C07; C07C; C07C37/00; C07C37/11; C07C37/14; C08; C08F; C08F12/00; C08F12/02; C08F12/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
32 words
A STABILIZED FOOD COMPOSITION COMPRISING AN EDIBLE FAT OR OIL NORMALLY SUBJECT TO OXIDATIVE DETERIORATION HAVING INTIMATELY ADMIXED THEREWITH A POLYMER CONSISTING ESSENTIALLY OF A UNITS OF A MONOMER OF THE FORMULA
Claim 2
Dependent Claim
32 words
A STABILIZED FOOD COMPOSITION COMPRISING AN EDIBLE FAT OR OIL NORMALLY SUBJECT TO OXIDATIVE DETERIORATION HAVING INTIMATELY ADMIXED THEREWITH A POLYMER CONSISTING ESSENTIALLY OF A UNITS OF A MONOMER OF THE FORMULA
Claim 3
Dependent Claim
17 words
The stabilized food composition of claim 1 wherein R1 is methyl and R2 is methyl or hydrogen.
Claim 4
Dependent Claim
14 words
The stabilized food composition of claim 2 wherein n is from 20 to 1500.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |