US2952969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aviation turbo fuel
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-05-26
•
Granted: 1960-09-20
•
Expires: 1975-05-26
Abstract
No abstract record available.
Inventors
- 👤 Theodore B Wasserbach
- 👤 Matthew W France
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:51
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
83 words
THE METHOD OF OPERATING THE JET ENGINE OF A JET PROPELLED AIRCRAFT AT LOW TEMPERATURES WHICH COMPRISES OPERATING SAID ENGINE WITH A HYDROCARBON JET FUEL CONTAINING FROM 0.02 TO 0.2 WEIGHT PERCENT OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF THE SORBITAN MONOESTERS, THE POLYOXYETHYLENE ETHERS OF THE SORBITAN MONOESTERS, AND THE POLYETHYLENE GLYCOL MONOESTERS, OF FATTY ACIDS HAVING FROM 12 TO 22 CARBON ATOMS, WHEREBY ICE FORMATION AND RESULTANT FUEL FILTER PLUGGING WITHIN THE FUEL SYSTEM OF SAID ENGINE ARE PREVENTED.
Claim 2
Independent Claim
83 words
THE METHOD OF OPERATING THE JET ENGINE OF A JET PROPELLED AIRCRAFT AT LOW TEMPERATURES WHICH COMPRISES OPERATING SAID ENGINE WITH A HYDROCARBON JET FUEL CONTAINING FROM 0.02 TO 0.2 WEIGHT PERCENT OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF THE SORBITAN MONOESTERS, THE POLYOXYETHYLENE ETHERS OF THE SORBITAN MONOESTERS, AND THE POLYETHYLENE GLYCOL MONOESTERS, OF FATTY ACIDS HAVING FROM 12 TO 22 CARBON ATOMS, WHEREBY ICE FORMATION AND RESULTANT FUEL FILTER PLUGGING WITHIN THE FUEL SYSTEM OF SAID ENGINE ARE PREVENTED.
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |