Patent US2699385A successfully refreshed from Google Patents.
US2699385A
Expired / Lapsed
US
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Hydrocarbon fuel oil compositions
Assignee: Gulf Research and Development Co
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Filing: 1951-04-19
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Granted: 1955-01-11
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Expires: 1971-04-19
Abstract
No abstract record available.
Inventors
- 👤 Donald R Stevens
- 👤 Elizabeth L Fareri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:43
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/183; C10L1/1832; C10L1/185; C10L1/1852; C10L1/1857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN IMPROVED FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON FUEL OIL AND A MINOR AMOUNT, SUFFICIENT TO INCREASE APPRECIABLY THE BURNING RATE OF THE FORMULA:
Claim 2
Dependent Claim
27 words
AN IMPROVED FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON FUEL OIL AND A MINOR AMOUNT, SUFFICIENT TO INCREASE APPRECIABLY THE BURNING RATE OF THE FORMULA:
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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |