Patent US3190823A successfully refreshed from Google Patents.
US3190823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective oxidation depollution process and apparatus
Assignee: Coast Manufacturing and Supply Co
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Filing: 1961-01-13
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Granted: 1965-06-22
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Expires: 1981-01-13
Abstract
No abstract record available.
Inventors
- 👤 Bloxham Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:33
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD FOR THE DEPOLLUTION OF AIR WHICH COMPRISES ESTABLISHING A FLOW OF AIR CONTAINING OXIDIZABLE POLLUTANTS THROUGH AN INFRA-RED RAY EMITTING ZONE, GENERATING INFRA-RED RADIATION ADJACENT TO SAID FLOW, DIRECTING SAID FLOW OF AIR SO THAT IT IS PREDOMINANTLY OUT OF CONTACT WITH THE LOCUS OF THE INFRA-RED GENERATION, AND
Claim 2
Independent Claim
51 words
A METHOD FOR THE DEPOLLUTION OF AIR WHICH COMPRISES ESTABLISHING A FLOW OF AIR CONTAINING OXIDIZABLE POLLUTANTS THROUGH AN INFRA-RED RAY EMITTING ZONE, GENERATING INFRA-RED RADIATION ADJACENT TO SAID FLOW, DIRECTING SAID FLOW OF AIR SO THAT IT IS PREDOMINANTLY OUT OF CONTACT WITH THE LOCUS OF THE INFRA-RED GENERATION, AND
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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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |