US2786745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil
Assignee: California Research LLC
•
Filing: 1950-10-17
•
Granted: 1957-03-26
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Expires: 1970-10-17
Abstract
No abstract record available.
Inventors
- 👤 Robert A Stayner
- 👤 Richard D Stayner
- 👤 Ludwig H Dimpfl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:21
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C10L1/1985
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A NORMALLY LIQUID HYDROCARBON FUEL OIL CONTAINING HYDROCARBONS, BOILING IN THE RANGE OF 350* TO 750*F., HAVING INCORPORATED THEREIN 0.001 TO 0.20% BY WEIGHT OF A PREDOMINANTLY OIL-SOLUBLE POLYOXYETHYLEN ETHER OF AN ALKYL PHENOL, THE ALKYL PORTION OF SAID ALKYL PHENOL CONTAINING AT LEAST 8 CARBON ATOMS AND THE POLYOXYETHYLENE PORTION OF THE MOLECULE CONTAINING FROM 2 TO 20 ETHYLENE OXIDE GROUPS.
Claim 2
Dependent Claim
62 words
A NORMALLY LIQUID HYDROCARBON FUEL OIL CONTAINING HYDROCARBONS, BOILING IN THE RANGE OF 350* TO 750*F., HAVING INCORPORATED THEREIN 0.001 TO 0.20% BY WEIGHT OF A PREDOMINANTLY OIL-SOLUBLE POLYOXYETHYLEN ETHER OF AN ALKYL PHENOL, THE ALKYL PORTION OF SAID ALKYL PHENOL CONTAINING AT LEAST 8 CARBON ATOMS AND THE POLYOXYETHYLENE PORTION OF THE MOLECULE CONTAINING FROM 2 TO 20 ETHYLENE OXIDE GROUPS.
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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) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |