US3561196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collector apparatus
Assignee: American Air Filter Co Inc
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Filing: 1969-03-25
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Granted: 1971-02-09
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Expires: 1989-03-25
Abstract
Abstract DUST COLLECTOR APPARATUS OF THE LOUVERED TYPXXXXXXXIN A DIRTY GAS STREAM IS ORIGINALLY PASSED THROUGH AXXXXXXXGING DIRTY GAS INLET PLENUM IN A FLOW-THROUGH XXXXNG, REVERSED IN ITS DIRECTIONAL COURSE IN UNITARY FASHION BY DELFECTOR MEANS TO FLOW INTO A LOUVERED DIRTY GAS TREATING PLENUM AND REVERSED AGAIN TO ITS ORIGINAL COURSE AS A PLURALITY OF SEPARATE GAS STREAMS THROUGH LOUVER PASSAGES IN THE THE WALLS OF THE DIRTY GAS TREATING PLENUM.
Inventors
- 👤 Karl L Westlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:09
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B01D45/16
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |