Patent US2789891A successfully refreshed from Google Patents.
US2789891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline fuel system conditioner
Assignee: Gulf Research and Development Co
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Filing: 1953-08-24
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Granted: 1957-04-23
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Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Oliver L Brandes
- 👤 Jr Charles B Pattinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:04
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10M; C10M1/00; C10M1/08; C10L1/16; C10L1/1616; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824; C10L1/185; C10L1/1857; C10L1/19; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/16; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/08; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/32; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2215/00; C10M2215/14; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10N; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A GASOLINE FUEL SYSTEM CONDITIONER CONSISTING ESSENTIALLY OF A HOMOGENOUS MIXTURE OF ABOUT 1 TO ABOUT 30 PERCENT BY VOLUME OF A LIGHT MINERAL LUBRICATING OIL; ABOUT 30 TO ABOUT 80 PERCENT BY VOLUME OF A MIXTURE OF METHYL ALCOHOL AND ISOPROPYL ALCHOL, THE VOLUMETRIC RATIO OF SAID METHYL ALCOHOL TO SAID ISOPROPYL ALCOHOL BEING BETWEEN ABOUT 1:1 AND 1:2; ABOUT 5 TO ABOUT 25 PERCENT BY VOLUME OF A SATURATED ALIPHATIC KETONE HAVING A BOILING POINT BELOW ABOUT 350*F.; AND ABOUT 5 TO ABOUT 25 PERCENT BY VOLUME OF AN ESTER OF A SATURATED ALIPHATIC ACID, SAID ESTER HAVING A BOILING POINT BELOW ABOUT 350*F.
Claim 2
Dependent Claim
106 words
A GASOLINE FUEL SYSTEM CONDITIONER CONSISTING ESSENTIALLY OF A HOMOGENOUS MIXTURE OF ABOUT 1 TO ABOUT 30 PERCENT BY VOLUME OF A LIGHT MINERAL LUBRICATING OIL; ABOUT 30 TO ABOUT 80 PERCENT BY VOLUME OF A MIXTURE OF METHYL ALCOHOL AND ISOPROPYL ALCHOL, THE VOLUMETRIC RATIO OF SAID METHYL ALCOHOL TO SAID ISOPROPYL ALCOHOL BEING BETWEEN ABOUT 1:1 AND 1:2; ABOUT 5 TO ABOUT 25 PERCENT BY VOLUME OF A SATURATED ALIPHATIC KETONE HAVING A BOILING POINT BELOW ABOUT 350*F.; AND ABOUT 5 TO ABOUT 25 PERCENT BY VOLUME OF AN ESTER OF A SATURATED ALIPHATIC ACID, SAID ESTER HAVING A BOILING POINT BELOW ABOUT 350*F.
References Cited (Backward Citations)
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Cited
US2312790A
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US2341892A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |