US2842431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treated fuels
Assignee: Individual
•
Filing: 1955-08-24
•
Granted: 1958-07-08
•
Expires: 1975-08-24
Abstract
No abstract record available.
Inventors
- 👤 Louie H Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:14
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/10; C10L5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
THE PROCESS OF PREPARING A TREATED FUEL WHICH COMPRISES IMPREGNATING CHARCOAL WITH MOLTEN PARAFFIN WAX FOR A PERIOD OF FROM ABOUT 5 TO ABOUT 20 SECONDS AT A TEMPERATURE NOT LESS THAN 165*F. AND RECOVERING A FUEL OF SUPERIOR IGNITION CHARACTERISTICS.
Claim 2
Dependent Claim
41 words
THE PROCESS OF PREPARING A TREATED FUEL WHICH COMPRISES IMPREGNATING CHARCOAL WITH MOLTEN PARAFFIN WAX FOR A PERIOD OF FROM ABOUT 5 TO ABOUT 20 SECONDS AT A TEMPERATURE NOT LESS THAN 165*F. AND RECOVERING A FUEL OF SUPERIOR IGNITION CHARACTERISTICS.
References Cited (Backward Citations)
CA477770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |