US3608283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile suction cleaners for pulverulent material
Assignee: Manutair SA
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Filing: 1968-10-29
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Granted: 1971-09-28
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Expires: 1988-10-29
Abstract
Abstract A MOBILE CLEANING APPARATUS IS PROVIDED FOR THE CLEANING OF AIR CONTAINING PULVERULENT MATERIAL, PARTICULARLY DUST. THE APPARATUS INCLUDES A MOBILE CARRIAGE ON WHICH IS MOUNTED A SEPARATION CONTAINER, A FILTRATION CONTAINER AND SUCTION MEANS FOR INDUCING A FLOW OF POLLUTED AIR THROUGH BOTH CONTAINERS IN ORDER TO PURIFY IT, THE SEPARATION CONTAINER BEING PIVOTABLY MOUNTED ON THE CARRIAGE AND DETACHABLE THEREFROM TO FACILITATE ITS EMPTYING. A CONNECTION FOR AIR FLOW FROM THE SEPARATION CONTAINER TO THE FILTRATION CONTAINER IS COMPLETED WHEN THE SEPARATION CONTAINER IS SUPPORTED IN PLACE ON THE CARRIAGE.
Inventors
- 👤 Bernard J Huglo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:09
CPC Classifications
A; A47; A47L; A47L7/00
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |