US3117338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction nozzle
Assignee: Filtex Corp
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Filing: 1962-03-12
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Granted: 1964-01-14
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:31
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/06; A47L9/0606; A47L9/0613
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
A SUCTION-OPERATED FLOOR SWEEPING BRUSH HAVING AN ELONGATED NARROW MAIN BODY NOZZLE PROVIDED AT ITS MIDPORTION WITH A SWIVELLING COUPLING FOR A SUCTION WAND PROJECTING UPWARDLY AT AN ANGLE FROM THE REAR SIDE WALL OF THE NOZZLE, THE LOWER SIDE OF SAID NOZZLE OPENING DOWNWARDLY AND HAVING A RIM EDGE LYING IN A SINGLE PLANE AND INCLUDING A LONG CURVATE REAR WALL AND SHORT END WALLS MERGING WITH A STRAIGHT WALL ALONG THE FRONT OF SAID NOZZLE, SAID RIM EDGE BEING FORMED WITH RECESS MEANS FOR SEATING A SINGLE ROW OF BRISTLE MOUNTING STRIPS ABOUT THE PERIMETER OF SAID NOZZLE OPENING, A SINGLE SET OF BRISTLE STRIPS MOUNTED IN SAID RECESS MEANS INCLUDING A C-SHAPED BRISTLE STRIP EXTENDING ALONG SAID CURVATE REAR WALL AND ACROSS SAID SHORT END WALLS WITH ITS ENDS TERMINATING AT THE FORWARD CORNERS OF SAID STRAIGHT FRONT WALL AND A STRAIGHT BRISTLE STRIP EXTENDING ALONG SAID FRONT WALL THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |