US2904416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum distillate fuels
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-10-30
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Granted: 1959-09-15
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Expires: 1977-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jr John V Clarke
- 👤 Stephen J Metro
- 👤 Jr John O Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:16
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2658
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PETROLEUM DISTILLATE FUEL BOILING IN THE RANGE BETWEEN ABOUT 75*F. AND ABOUT 750*F. HAVING INCORPORATED THEREIN FROM ABOUT 0.001% TO ABOUT 0.5% BY WEIGHT OF A TETRA ALKYL AMMONIUM SALT OF AN ALKYLPOLYALKYLENEOXY ESTER OF PHOSPHORIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
41 words
A PETROLEUM DISTILLATE FUEL BOILING IN THE RANGE BETWEEN ABOUT 75*F. AND ABOUT 750*F. HAVING INCORPORATED THEREIN FROM ABOUT 0.001% TO ABOUT 0.5% BY WEIGHT OF A TETRA ALKYL AMMONIUM SALT OF AN ALKYLPOLYALKYLENEOXY ESTER OF PHOSPHORIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |