Carpet sweeper
CA 2064612 A1 · Owner: Rosendall, Henry J. · Inventors: Jailor, John J.; Rosendall, Henry J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A manually operated carpet sweeper which can be assembled and disassembled without the need of tools. The sweeper has a frame which supports front and rear wheels a, cleaning brush and a dirtpan, all of which are fastened to the frame by finger operable latching surfaces. The sweeper is operated with a handle which is fastened to a bail which is releasably supported on the frame. The front side and, top forward surfaces, all potentially marring surfaces are, covered with an elastomeric material which has finger actuable gripping surfaces for fixing the cover in place on the frame of the sweeper. The height of the sweeper and in, turn the height of the cleaning brush can be adjusted using, a …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 1, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 1, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 1, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.