US3034877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaded gasolines
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-08-05
•
Granted: 1962-05-15
•
Expires: 1977-08-05
Abstract
No abstract record available.
Inventors
- 👤 Alexander H Popkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:49
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12; C10L1/20; C10L1/201; C10L1/202; C10L1/26; C10L1/2633; C10L1/2641; C10L1/30; C10L1/305; C10L1/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN IMPROVED GASOLINE ADDITIVE COMPOSITION THE MAJOR PROPORTION OF WHICH COMPRISES A VOLATILE TETRAALKYL LEAD COMPOUND AS AN ANTI-KNOCK AGENT AND A MIXTURE OF 1 PART OF A C8 MONOALKYL DIPHENYL PHOSPHATE AND FROM 3 TO 32 PARTS OF A HALOGENATED HYDROCARBON BOILING BELOW 250* C. AS A SCAVENGER AGENT, SAID MIXTURE BEING PRESENT IN A CONCENTRATION BETWEEN 1.75 AND 4.00 THEORIES BASED ON THE LEAD AND SAID HALOGENATED HYDROCARBON SCAVENGER AGENT CONTAINING FROM 0.1 TO 1.5 THEORIES OF A STOICHIOMETRIC EXCESS OF A CHLORINATED HYDROCARBON SCAVENGER.
Claim 2
Dependent Claim
87 words
AN IMPROVED GASOLINE ADDITIVE COMPOSITION THE MAJOR PROPORTION OF WHICH COMPRISES A VOLATILE TETRAALKYL LEAD COMPOUND AS AN ANTI-KNOCK AGENT AND A MIXTURE OF 1 PART OF A C8 MONOALKYL DIPHENYL PHOSPHATE AND FROM 3 TO 32 PARTS OF A HALOGENATED HYDROCARBON BOILING BELOW 250* C. AS A SCAVENGER AGENT, SAID MIXTURE BEING PRESENT IN A CONCENTRATION BETWEEN 1.75 AND 4.00 THEORIES BASED ON THE LEAD AND SAID HALOGENATED HYDROCARBON SCAVENGER AGENT CONTAINING FROM 0.1 TO 1.5 THEORIES OF A STOICHIOMETRIC EXCESS OF A CHLORINATED HYDROCARBON SCAVENGER.
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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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |