Blower apparatus with brush for scavenging surfaces
CA 2342263 A1 · Owner: Gotham, Brooks M. · Inventors: Gotham, Brooks M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A blower head, comprising a frame, a brush rotatably supported by the frame a sweeper drive adapted for rotating said brush to sweep a surface and a , blower unit, adapted for removing swept-up particles away from the surface. The frame includes a, mouth portion and a throat portion. The brush is rotatably supported by the frame, within the mouth portion. The sweeper drive rotates the brush to sweep particles such, as snow or ice on a surface toward the frame. The mouth portion and the throat portion are constructed and arranged to funnel swept-up particles from the mouth, portion and into the throat portion and the blower unit positioned therein. The blower, head further includes an …
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 March 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2023.
- 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.