Patent US3353338A successfully refreshed from Google Patents.
US3353338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaner
Assignee: Electrolux AB
•
Filing: 1963-01-15
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Granted: 1967-11-21
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Expires: 1983-01-15
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Bengt Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:07
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/0081; A47L9/10; A47L9/12; A47L9/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
IN A SUCTION CLEANER HAVING A CASING PROVIDED WITH AN INLET AND OUTLET AND HAVING A PATH OF FLOW FOR AIR THEREIN BETWEEN THE INLET AND OUTLET, MEANS IN SAID CASING FOR MOVING AIR IN THE PATH OF FLOW FROM THE INLET TO THE OUTLET, PASSAGE MEANS IN SAID CASING WHICH IS IN SAID PATH OF FLOW BETWEEN THE INLET AND OUTLET AND HAS AN OPENING THEREIN WHICH IS ADJACENT TO THE OUTLET AND FROM WHICH AIR EMERGES IN ITS PATH OF FLOW FROM THE INLET TO THE OUTLET, SAID CASING INCLUDING AN APERTUREDD EXTERIOR WALL SECTION WHICH IS MOVABLE TO AND FROM A POSITION OVER THE OPENING, THE OUTLET BEING DEFINED BY SAID APERTURED EXTERIOR WALL SECTION IN ITS POSITION OVER SAID OPENING, A FINE AIR FILTER COMPRISING MATERIAL IN THE FORM OF A SHEET HAVING A CROSS-SECTIONAL AREA GREATER THAN THAT OF SAID OPENING, SAID SHEET HAVING FIRST AND SECOND OPPOSING SIDES AND BEING TRANSVERSE TO THE AXIS OF SAID OPENING AND REMOVABLY POSITIONED IN SAID PATH OF FLOW BETWEEN SAID OPENING AND SAID EXTERIOR WALL SECTION AND THROUGH WHICH ALL OF THE AIR MOVING IN SAID PATH OF FLOW PASSES TO REMOVE FINE DUST PAR-
Claim 2
Dependent Claim
198 words
IN A SUCTION CLEANER HAVING A CASING PROVIDED WITH AN INLET AND OUTLET AND HAVING A PATH OF FLOW FOR AIR THEREIN BETWEEN THE INLET AND OUTLET, MEANS IN SAID CASING FOR MOVING AIR IN THE PATH OF FLOW FROM THE INLET TO THE OUTLET, PASSAGE MEANS IN SAID CASING WHICH IS IN SAID PATH OF FLOW BETWEEN THE INLET AND OUTLET AND HAS AN OPENING THEREIN WHICH IS ADJACENT TO THE OUTLET AND FROM WHICH AIR EMERGES IN ITS PATH OF FLOW FROM THE INLET TO THE OUTLET, SAID CASING INCLUDING AN APERTUREDD EXTERIOR WALL SECTION WHICH IS MOVABLE TO AND FROM A POSITION OVER THE OPENING, THE OUTLET BEING DEFINED BY SAID APERTURED EXTERIOR WALL SECTION IN ITS POSITION OVER SAID OPENING, A FINE AIR FILTER COMPRISING MATERIAL IN THE FORM OF A SHEET HAVING A CROSS-SECTIONAL AREA GREATER THAN THAT OF SAID OPENING, SAID SHEET HAVING FIRST AND SECOND OPPOSING SIDES AND BEING TRANSVERSE TO THE AXIS OF SAID OPENING AND REMOVABLY POSITIONED IN SAID PATH OF FLOW BETWEEN SAID OPENING AND SAID EXTERIOR WALL SECTION AND THROUGH WHICH ALL OF THE AIR MOVING IN SAID PATH OF FLOW PASSES TO REMOVE FINE DUST PAR-
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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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |