Cleaning apparatus
CA 2049157 A1 · Owner: Moisan, Hubert · Inventors: Moisan, Hubert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cleaning apparatus for cleaning debris from overhead building gutters. The apparatus comprises an extendible sectional pole having a hook-shape top end. The top end has a connector hub at a free end thereof. The hub has a hollow chamber with opposed threaded bores for attachment of a stem of a gutter cleaning brush at a selected one of the opposed ends. A plurality of small holes are provided in at least the underside of the hub. A hose connector is secured to a top part of the hub for connection to a water hose which admits water in the hollow chamber and out through the small holes under pressure. A clamp is located adjacent the top portion of the pole to support the hose so that the …
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 August 14, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2013.
- 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.