US3558292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet fuel additive
Assignee: Ethyl Corp
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Filing: 1968-12-20
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Granted: 1971-01-26
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Expires: 1988-12-20
Abstract
Abstract A METHOD OF REDUCING MANGANESE-CONTAINING DEPOSITS FORMED ON THE SURFACES OF JET ENGINES FROM BURNING FUEL CONTAINING ORGANOMANGANESE COMPOUNDS AS A SMOKE REDUCER IS DESCRIBED. THE DEPOSITS ARE REDUCED BY ADDING A NON-METALLIC ORGANIC SULFUR COMPOUND TO THE ORGANOMANGANESE-CONTAINING FUEL. THE MANGANESE-CONTAINING DEPOSIT IS SUBSTANTIALLY REDUCED BY THE SULFUR ADDITIVE. CYCLOPENTADIENYL MANGANESE TRICARBONYL COMPOUNDS ARE USEFUL ORGANOMANGANESE COMPOUNDS; DIALKYLXANTHATES ARE USEFUL ORGANIC SULFUR COMPOUNDS.
Inventors
- 👤 Richard G Abowd Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:54
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10L1/14; C10L10/04; C10L1/24; C10L1/2425; C10L1/30; C10L1/305
Claims Analysis
Total Claims: 0
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |