US2841479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glycerol triether lubricant compositions
Assignee: Dow Chemical Co
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Filing: 1954-05-28
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Granted: 1958-07-01
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Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hefner
- 👤 Malcolm E Pruitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:21
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C10L1/1985; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A LIQUID MOTOR FUEL FOR INTERNAL COMBUSTION ENGINES CONSISTING ESSENTIALLY OF GASOLINE AND CONTAINING A MINOR PROPORTION OF FROM 0.1 TO 20 PERCENT BY VOLUME OF A MIXTURE OF NORMALLY LIQUID TRIALKYL TRIETHERS OF (TERMINAL MONOHYDROXY POLYOXYALKYLENE) MONOETHERS OF GLYCEROL, SAID ALKYL GROUPS BEING THE SAME OR DIFFERENT AND HAVING FROM 1 TO 8 CARBON ATOMS EACH, AND SAID POLYOXYALKYLENE MONOEHTHER GROUPS BEING COMPOSED OF AN AVERAGE OF FROM 5 TO 50 OXYALKYLENE UNITS FORMED FROM AT LEAST ONE ALKYLENE OXIDE SELECTED FROM THE CLASS CONSISTING OF ETHYLENE OXIDE, 1,2-PROPYLENE OXIDE, 1,2-BUTYLENE OXIDE, AND 2,3BUTYLENE OXIDE.
Claim 2
Dependent Claim
96 words
A LIQUID MOTOR FUEL FOR INTERNAL COMBUSTION ENGINES CONSISTING ESSENTIALLY OF GASOLINE AND CONTAINING A MINOR PROPORTION OF FROM 0.1 TO 20 PERCENT BY VOLUME OF A MIXTURE OF NORMALLY LIQUID TRIALKYL TRIETHERS OF (TERMINAL MONOHYDROXY POLYOXYALKYLENE) MONOETHERS OF GLYCEROL, SAID ALKYL GROUPS BEING THE SAME OR DIFFERENT AND HAVING FROM 1 TO 8 CARBON ATOMS EACH, AND SAID POLYOXYALKYLENE MONOEHTHER GROUPS BEING COMPOSED OF AN AVERAGE OF FROM 5 TO 50 OXYALKYLENE UNITS FORMED FROM AT LEAST ONE ALKYLENE OXIDE SELECTED FROM THE CLASS CONSISTING OF ETHYLENE OXIDE, 1,2-PROPYLENE OXIDE, 1,2-BUTYLENE OXIDE, AND 2,3BUTYLENE OXIDE.
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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |