US3619213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Darkening-resistant frying fat
Assignee: Procter and Gamble Co
•
Filing: 1969-05-22
•
Granted: 1971-11-09
•
Expires: 1989-05-22
Abstract
Abstract A frying fat composition contains a minor proportion of particular silicon-containing additive to retard darkening in the frying fat over long periods of frying use. Pyrogenic silica utilized at a 0.05 to 0.7 weight percentage level is a preferred antidarkening additive.
Inventors
- 👤 Donald J Haynes
- 👤 Vernon E Weis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:43
CPC Classifications
A; A23; A23D; A23D9/00; A23D9/007
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
19 words
The frying fat composition of claim 1 wherein the metal silicates are calcium silicate, magnesium silicate, or magnesium trisilicate.
Claim 2
Dependent Claim
14 words
The frying fat composition of claim 1 wherein the antidarkening additive is pyrogenic silica.
Claim 3
Dependent Claim
27 words
The frying fat composition of claim 3 wherein the amount of antidarkening additive utilized ranges from 0.10 percent to 0.3 percent by weight of the total composition.
Claim 4
Dependent Claim
14 words
The frying fat composition of claim 1 wherein the antidarkening additive is magnesium trisilicate.
Claim 5
Dependent Claim
26 words
The frying fat composition of claim 5 wherein the amount of additive utilized ranges from 0.25 percent to 0.75 percent by weight of the total composition.
Claim 6
Dependent Claim
36 words
The frying fat composition of claim 4 wherein the pyrogenic silica has a particle size ranging from 0.005 microns to about 0.020 microns and the fatty glyceride is a suspension of solid glyceride in liquid glyceride.
Claim 7
Dependent Claim
14 words
The frying fat composition of claim 1 wherein the fatty glyceride is soybean triglyceride.
Claim 8
Dependent Claim
14 words
The frying fat composition of claim 7 wherein the fatty glyceride is soybean triglyceride.
Claim 9
Dependent Claim
17 words
The frying fat composition of claim 4 wherein the fatty glyceride is refined and deodorized cottonseed oil.
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |