US3254974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized fuel oil compositions
Assignee: Armour and Co
•
Filing: 1962-04-20
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Granted: 1966-06-07
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Expires: 1982-04-20
Abstract
No abstract record available.
Inventors
- 👤 Byron E Marsh
- 👤 Robert B Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:00
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
34 words
A HYDROCARBON FUEL OIL COMPOSITION CONSISTING ESSENTIALLY OF FUEL OIL NORMALLY SUBJECT TO THE FORMATION OF GUMS, AND ABOUT 10 TO 200 PARTS PER MILLION OF AN UNSYMMETRICAL SECONDARY AMINE HAVING THE FOLLOWING STRUCTURE:
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |