Patent US4929252A successfully refreshed from Google Patents.
US4929252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel
Assignee: Individual
•
Filing: 1989-06-15
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Granted: 1990-05-29
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Expires: 2009-06-15
Abstract
Abstract Castor oil extended by addition of an alcohol and water, the mixture then being essentially immune to phase separation or haziness or inadvertent addition of extra water contamination, of a pH range of about 4-121/2 and having a flash point above the United States government regulation permitting the fuel to be shipped interstate as an oil rather than as a volatile solvent or fuel.
Inventors
- 👤 Donald D. Brillhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:03
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/02; C10L1/026
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
A method of making a fuel suitable for diesel engine use, comprising the blending of castor oil and an azeotrope of ethyl alcohol and water.
Claim 2
Independent Claim
25 words
A method of making a fuel suitable for diesel engine use, comprising the blending of castor oil and an azeotrope of ethyl alcohol and water.
Claim 3
Independent Claim
32 words
A method of making a fuel suitable for diesel engine use, comprising the blending of castor oil and an azeotrope of ethyl alcohol and water, the castor oil being the major ingredient.
Claim 4
Independent Claim
32 words
A method of making a fuel suitable for diesel engine use, comprising the blending of castor oil and an azeotrope of ethyl alcohol and water, the castor oil being the major ingredient.
Claim 5
Independent Claim
38 words
A method of making a fuel suitable for diesel engine use, comprising the blending of castor oil and an azeotrope of ethyl alcohol and water, the castor oil being about 75 percent and the balance essentially the azeotrope.
Claim 6
Independent Claim
38 words
A method of making a fuel suitable for diesel engine use, comprising the blending of castor oil and an azeotrope of ethyl alcohol and water, the castor oil being about 75 percent and the balance essentially the azeotrope.
References Cited (Backward Citations)
US4397655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |