US3692503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activated manganese containing additive for fuels
Assignee: Ecolab Inc
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Filing: 1969-02-26
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Granted: 1972-09-19
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Expires: 1989-02-26
Abstract
Abstract AN ACTIVATED MANGANESE CONTAINING ADDITIVE COMPOSITION FOR FUELS FOR RETARDING THE CORROSIVENESS OF THE ASH AND THE ASH SLAG BUILDUP OF SUCH FUELS UPON COMBUSTION, SUCH FUELS INCLUDING VANADIUM CONTAINING FUELS AND ALKALI, SULFUR AND IRON CONTAINING COALS. THE SAID ADDITIVE COMPOSITION COMPRISES A PREPARATION OF A MANGANESE COMPOUND PREFERABLY AND A METAL SALT OF AN ALKYL-ARYL SULFONATE BROUGHT TO A PARTICLE SIZE IN THE RANGE OF 0.25 TO 20 MICRONS.
Inventors
- 👤 Ira Kukin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:09
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/188; C10L1/1881; C10L1/1886; C10L1/1888; C10L1/24; C10L1/2431; C10L1/2437; C10L1/30; C10L1/301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |