Patent US2560368A successfully refreshed from Google Patents.
US2560368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibition of ice formation in fuels
Assignee: Shell Development Co
•
Filing: 1949-04-12
•
Granted: 1951-07-10
•
Expires: 1969-04-12
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Richards
- 👤 Keith R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:50
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/1225; C10L1/1233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF REDUCING THE TENDENCY OF WATER PRESENT AS A DISSOLVED IMPURITY IN A LIQUID HYDROCARBON INTERNAL COMBUSTION ENGINE FUEL TO PRECIPITATE AS ICE CRYSTALS AT REDUCED TEMPERATURES WHICH COMPRISES INTIMATELY CONTACTING SAID FUEL, PRIOR TO THE INTRODUCTION THEREOF INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, WITH SOLID CHROMIUM TRIOXIDE BY FLOWING SAID FUEL IN A LIQUID STATE THROUGH A CONFINED MASS OF SAID SOLID CHROMIUM TRIOXIDE.
Claim 2
Independent Claim
70 words
A METHOD OF REDUCING THE TENDENCY OF WATER PRESENT AS A DISSOLVED IMPURITY IN A LIQUID HYDROCARBON INTERNAL COMBUSTION ENGINE FUEL TO PRECIPITATE AS ICE CRYSTALS AT REDUCED TEMPERATURES WHICH COMPRISES INTIMATELY CONTACTING SAID FUEL, PRIOR TO THE INTRODUCTION THEREOF INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, WITH SOLID CHROMIUM TRIOXIDE BY FLOWING SAID FUEL IN A LIQUID STATE THROUGH A CONFINED MASS OF SAID SOLID CHROMIUM TRIOXIDE.
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) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |