US3013868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid hydrocarbon compositions
Assignee: Shell USA Inc
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Filing: 1959-05-27
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Granted: 1961-12-19
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Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Skei Thurston
- 👤 James E Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04; C; C07; C07C; C07C51/00; C07C51/41; C07C51/412; C07C65/00; C07C65/01; C07C65/03; C07C65/05; C08; C08F; C08F20/00; C08F20/62; C08F22/00; C09; C09B; C09B50/00; C09K; C09K3/00; C09K3/16; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/188; C10L1/189; C10L1/192; C10L1/195; C10L1/196; C10L1/1963; C10L1/197; C10L1/1973; C10L1/22; C10L1/228; C10L1/2283; C10L1/234; C10L1/236; C10L1/2364; C10L1/2366; C10L1/2368; C10L1/24; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
83 words
A CONDUCTIVITY COMPOSITION CONSISTING ESSENTIALLY OF (1) A CHROMIUM ALKYL SALICYLATE HAVING A MOLECULAR WEIGHT OF 500-2500 AND (2) A COPOLYMER OF A VINYL PYRIDINE AND AT LEAST ONE ESTER OF AN ACRYLIC ACID AND A LONG CHAIN ALIPHATIC ALCOHOL CONTAINING AT LEAST 10 CARBON ATOMS, THE MOL RATIO OF THE VINYL PYRIDINE TO ESTER BEING FROM 1:15 TO 2:1, SAID COPOLYMER HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN 5X10**3 TO 25X10**5, THE WEIGHT RATIO OF COPOLYMER TO CHROMIUM BEING BETWEEN 20:1 AND 5000:1.
Claim 2
Dependent Claim
83 words
A CONDUCTIVITY COMPOSITION CONSISTING ESSENTIALLY OF (1) A CHROMIUM ALKYL SALICYLATE HAVING A MOLECULAR WEIGHT OF 500-2500 AND (2) A COPOLYMER OF A VINYL PYRIDINE AND AT LEAST ONE ESTER OF AN ACRYLIC ACID AND A LONG CHAIN ALIPHATIC ALCOHOL CONTAINING AT LEAST 10 CARBON ATOMS, THE MOL RATIO OF THE VINYL PYRIDINE TO ESTER BEING FROM 1:15 TO 2:1, SAID COPOLYMER HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN 5X10**3 TO 25X10**5, THE WEIGHT RATIO OF COPOLYMER TO CHROMIUM BEING BETWEEN 20:1 AND 5000:1.
Claim 3
Dependent Claim
52 words
A LIQUID HYDROCARBON FUEL COMPOSITION CONSISTING ESSENTIALLY OF HYDROCARBONS BOILING IN THE RANGE OF FROM -40*F. TO 700*F. AND A COMPOSITION ACCORDING TO CLAIM 1, IN AN AMOUNT SUFFICIENT TO PROVIDE SAID FUEL COMPOSITION WITH 1X10**-3 TO 1X10**-9 GRAM ATOMS OF CHROMIUM IN THE FORM OF THE SALICYLATE PER LITER OF HYDROCARBON.
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |