Patent US1703726A successfully refreshed from Google Patents.
US3594136A
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Smoke suppressant additives
Assignee: Citgo Petroleum Corp
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Filing: 1968-11-26
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Granted: 1971-07-20
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Expires: 1988-11-26
Abstract
Abstract A SMOKE AND SOOT SUPPRESSANT ADDITIVE FOR LIQUID FUEL COMPRISES AN ETHER AND A GROUP II-A METAL CARBONATE. AN ESPECIALLY SUITABLE ADDITIVE IS BARIUM CARBONATE AND AN ALKYL ETHER OF ETHYLENE GLYCOL, SUCH AS THE DIMETHYL ETHER OF ETHYLENE GLYCOL. GENERALLY THE CARBONATE IS EMPLOYED IN AMOUNTS FROM ABOUT 0.1 TO 1% BY WEIGHT AND THE ETHER IS EMPLOYED IN AMOUNTS FROM 0.1 TO 1% BY WEIGHT.
Inventors
- 👤 Bernard H Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:44
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/04; C10L1/00; C10L1/10; C10L1/14; C10L10/02; C10L1/18; C10L1/185; C10L1/1852; C10L1/1855; C10L1/188; C10L1/24; C10L1/2431; C10L1/2437
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |