US3317291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonclogging fuel oil compositions
Assignee: Armour and Co
•
Filing: 1963-07-16
•
Granted: 1967-05-02
•
Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Byron E Marsh
- 👤 Tucek Donald Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:42
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/26; C10L1/2633; C10L1/2658; C10L1/222; C10L1/2222; C10L1/223; C10L1/228; C10L1/2286; C10L1/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A FUEL OIL COMPOSITION COMPRISING FUEL OIL AND AN ADDITIVE FROM ABOUT 0.0010 TO ABOUT 2.0 WEIGHT PERCENT OF A QUATERNARY AMMONIUM SALT HAVING THE FORMULA
Claim 2
Dependent Claim
26 words
A FUEL OIL COMPOSITION COMPRISING FUEL OIL AND AN ADDITIVE FROM ABOUT 0.0010 TO ABOUT 2.0 WEIGHT PERCENT OF A QUATERNARY AMMONIUM SALT HAVING THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |