Patent US3587210A successfully refreshed from Google Patents.
US3587210A
Expired / Lapsed
US
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Air pollution reduction system
Assignee: Individual
•
Filing: 1969-05-02
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Granted: 1971-06-28
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Expires: 1989-05-02
Abstract
Abstract AN AIR POLLUTION REDUCTION SYSTEM EMBODYING DIELECTRIC MEANS TO INDUCE ELECTROSTATIC FORCES IN THE PATH OF A POLLUTED FLUID STREAM TO CAUSE PRECIPITATION OF SOLIDS IN SAID STREAM IN COMBINATION WITH PARTICULATE COLLECTING MATERIAL MEANS TO REMOVE SUCH SOLIDS FROM THE FLUID STREAM.
Inventors
- 👤 Walter Shriner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:03
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/28; B03C3/30; Y; Y10; Y10S; Y10S422/00; Y10S422/90
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |