US3745751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur dioxide collection system
Assignee: AMERICAN DAVIDSON Inc A CORP OF MICH
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Filing: 1970-10-26
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Granted: 1973-07-17
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Expires: 1990-10-26
Abstract
Abstract A sulfur dioxide collection system comprising ozone-producing electrodes upstream from a baghouse, electrostatic precipitator, or scrubber, etc., whereby ozone is produced and simultaneously reacted with sulfur dioxide in the gas stream, thereby forming sulfur trioxide which is converted to sulfuric acid mist prior to or after entry into the conventional collector. The collection system removes the acid mist, (together with particulates, if any) from the flowing gas.
Inventors
- 👤 A Zey
- 👤 J Przygocki
- 👤 Huffel P Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:33
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/017; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; B01D53/501; B03C3/01; B03C3/02; B03C3/16; Y; Y10; Y10S; Y10S55/00; Y10S55/38
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |