US3624985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing pollutants from industrial exhaust products
Assignee: Simpson Timber Co
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Filing: 1969-10-15
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Granted: 1971-12-07
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Expires: 1989-10-15
Abstract
Abstract A METHOD OF POLLUTANT REMOVAL EMPLOYS THE STEPS OF ACCELERATING THE PARTICLES THROUGH A SCRUBBING LIQUID IN A VENTURI SCRUBBER AND SELECTIVELY CHANGING THE ACCELERATION BY CHANGING THE REMOVABLE THROAT SECTION ACCORDING TO THE SIZE OF THE PARTICLES IN THE INDUSTRIAL EXHAUST PRODUCTS BEING TREATED.
Inventors
- 👤 Roger F Giles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:05
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/10
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |