Hand held turbine powered extractor nozzle
CA 2218949 C · Owner: Keebler, A. Ronald · Inventors: Barker, Douglas C.; Gerber, Douglas E.; Miller, Daniel R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compact, hand held carpet and upholstery extractor nozzle is provided having a pair of air turbine powered vertical axis rotary scrub brushes located adjacent the extractor nozzle. The turbine has at least one ambient air inlet and an outlet that communicates with a suction tube extending from the extractor nozzle. A compact gear reduction operatively connects the air turbine to the scrub brushes. A turbine outlet baffle is preferably provided that extends from an upstream edge of the turbine outlet, into the suction tube and over and beyond the turbine outlet to direct air, liquid and debris flowing through the suction tube over and beyond the turbine outlet opening. A downstream end of …
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 October 22, 1997 and granted June 26, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.