Patent US2685502A successfully refreshed from Google Patents.
US2685502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diesel fuel
Assignee: Texaco Inc
•
Filing: 1950-05-20
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Granted: 1954-08-03
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Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Theodore C Heisig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:17
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A FUEL FOR COMPRESSION IGNITION ENGINES COMPRISING A DIESEL HYDROCARBON OIL STOCK CONTAINING A MINOR AMOUNT EFFECTIVE TO SUBSTANTIALLY IMPROVE THE CETANE NUMBER OF SAID DIESEL HYDROCARBON OIL STOCK OF AN OIL-SOLUBLE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
36 words
A FUEL FOR COMPRESSION IGNITION ENGINES COMPRISING A DIESEL HYDROCARBON OIL STOCK CONTAINING A MINOR AMOUNT EFFECTIVE TO SUBSTANTIALLY IMPROVE THE CETANE NUMBER OF SAID DIESEL HYDROCARBON OIL STOCK OF AN OIL-SOLUBLE COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
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US1575436A
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US1558967A
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US1906724A
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US1920766A
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US2160851A
Cited
US2304800A
Cited
US2599350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |