Patent US3653853A successfully refreshed from Google Patents.
US3653853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic anti-icing composition
Assignee: Universal Oil Products Co
•
Filing: 1969-11-14
•
Granted: 1972-04-04
•
Expires: 1989-11-14
Abstract
Abstract Synergistic anti-icing composition of (1) polyhydroxy alcohol and (2) C8-C20 amide of N-C8-C20-alkylene-diamine.
Inventors
- 👤 Robert H Rosenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:55
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/192; C10L1/198; C10L1/1985; C10L1/22; C10L1/222; C10L1/224; C10L1/232
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
13 words
The composition of claim 1 in which said polyhydroxy aliphatic alcohol is glycerol.
Claim 2
Dependent Claim
14 words
The composition of claim 1 in which said polyhydroxy aliphatic alcohol is ethylene glycol.
Claim 3
Dependent Claim
14 words
The composition of claim 1 in which said polyhydroxy aliphatic alcohol is hexylene glycol.
Claim 4
Dependent Claim
15 words
The composition of claim 1 in which said amide is the oleoyl amide of N-oleyl-1,3-diaminopropane.
Claim 5
Dependent Claim
15 words
The composition of claim 1 in which said amide is the stearoyl amide of N-stearyl-1,3-diaminopropane.
Claim 6
Dependent Claim
19 words
The composition of claim 1 incorporated in gasoline to prevent stalling due to icing of an internal combustion engine.
Claim 7
Dependent Claim
23 words
The composition of claim 7 incorporated in a concentration of from about 0.0001 percent to about 0.05 percent by weight of the gasoline.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |