US3566583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for purifying exhaust fumes
Assignee: JOHN W ASHMORE
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Filing: 1969-01-29
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Granted: 1971-03-02
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Expires: 1989-01-29
Abstract
Abstract AN APPARATUS FOR REMOVING IMPURITIES FROM THE EXHAUST OF INTERNAL COMBUSTION ENGINES WHEREIN THE EXHAUST GAS IS FED DIRECTLY INTO A LIQUID SOLUTION AFTER WHICH WATER VAPOR CARRIED BY THE CLEANED EXHAUST GAS IS EXTRACTED BEFORE DISCHARGE THEREBY AVOIDING ANY SUBSTANTIAL REDUCTION OF LIQUID SUPPLY WITHIN THE APPARATUS. COMPLETE WATER VAPOR EXTRACTION IS INSURED BY PASSING THE CLEANED EXHAUST FUMES SEQUENTIALLY THROUGH A SERIES OF CONDENSATION CHAMBERS.
Inventors
- 👤 John W Ashmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:46
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |