Cleaning heads and adaptors for use therewith
CA 2246594 A1 · Owner: Grey, Nicholas Gerald · Inventors: Grey, Nicholas Gerald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to adapt a cleaning head (10) of the kind adapted for cleaning floor surfaces which are of a relatively unyielding and non-absorbent nature by the application and removal of a liquid to enable such heads to be used for dry suction cleaning in the manner of normal vacuum cleaner a clip-on , adaptor/cover member (50) is provided. The adapter/cover member (50) is formed to define an inlet slot (62) to register with a suction aperture (37) in the cleaning head and to enclose squeegee blades (35) provided on the head. Additionally, the adaptor/cover member (50) includes a bottom wall (51) which extends over, and encloses, an applicator assembly (40) within the cleaning head …
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 February 13, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2019.
- 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.