US2591503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion catalyst compositions
Assignee: National Cylinder Gas Co
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Filing: 1949-01-17
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Granted: 1952-04-01
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Expires: 1969-01-17
Abstract
No abstract record available.
Inventors
- 👤 Bottoms Robert Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:40
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1616; C10L1/18; C10L1/1814
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A NON-HAZARDOUS, STABLE LIQUID COMBUSTION ADJUVANT COMPOSITION MISCIBLE WITH HYDROCARBON FUELS TO IMPROVE THE BURNING CHARACTERISTICS OF SUCH FUELS, COMPOSED ESSENTIALLY OF FROM 1% TO ABOUT 15% BY WEIGHT OF AT LEAST ONE ORGANO-METALLIC COMPOUND FORMED FROM A METAL OF THE GROUP CONSISTING OF COPPER, TIN, LEAD, CHROMIUM, MOLYBDENUM, TUNGSTEN, MAGANESE, IRON, COBALT AND NICKEL AND AN ORGANIC RADICAL HAVING AT LEAST TWO DOUBLE BONDED OXYGEN ATOMS ATTACHED TO CARBON ATOMS, SEPARATED BY A METHYLENE OR SUBSTITUTED METHYLENE GROUP, SAID ORGANO-METALLIC COMPOUND BEING DISSOLVED IN CRYSTAL-FREE NEUTRAL COAL TAR OIL, AND SAID COMPOSITION BEING CHARACTERIZED BY SOLUTION STABILITY ALONE AND IN ADMIXTURE WITH HYDROCARBON FUELS, AND IN THE PRESENCE OF WATER, OTHER FUEL ADDITIVES, ALKYL HALIDES, AND AT TEMPPERATURES AT LEAST AS LOW AS -35* F., AND BY A FLASH POINT OF NOT LESS THAN 170* F.. BY THE A.S.T.M. OPEN CUP METHOD.
Claim 2
Dependent Claim
143 words
A NON-HAZARDOUS, STABLE LIQUID COMBUSTION ADJUVANT COMPOSITION MISCIBLE WITH HYDROCARBON FUELS TO IMPROVE THE BURNING CHARACTERISTICS OF SUCH FUELS, COMPOSED ESSENTIALLY OF FROM 1% TO ABOUT 15% BY WEIGHT OF AT LEAST ONE ORGANO-METALLIC COMPOUND FORMED FROM A METAL OF THE GROUP CONSISTING OF COPPER, TIN, LEAD, CHROMIUM, MOLYBDENUM, TUNGSTEN, MAGANESE, IRON, COBALT AND NICKEL AND AN ORGANIC RADICAL HAVING AT LEAST TWO DOUBLE BONDED OXYGEN ATOMS ATTACHED TO CARBON ATOMS, SEPARATED BY A METHYLENE OR SUBSTITUTED METHYLENE GROUP, SAID ORGANO-METALLIC COMPOUND BEING DISSOLVED IN CRYSTAL-FREE NEUTRAL COAL TAR OIL, AND SAID COMPOSITION BEING CHARACTERIZED BY SOLUTION STABILITY ALONE AND IN ADMIXTURE WITH HYDROCARBON FUELS, AND IN THE PRESENCE OF WATER, OTHER FUEL ADDITIVES, ALKYL HALIDES, AND AT TEMPPERATURES AT LEAST AS LOW AS -35* F., AND BY A FLASH POINT OF NOT LESS THAN 170* F.. BY THE A.S.T.M. OPEN CUP METHOD.
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) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |