Electric vacuum cleaner
CA 2123740 C · Owner: Samsung Kwangju Electronics Co. Ltd. · Inventors: Park, Sung-Su; Chae, Hee-Gwon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an electric vacuum cleaner which can generate from within the cleaner and eject high temperature steam to have stains smeared into a floor, old dirts and the like removed easily so that, cleaning efficiency can be improved and sterilizing function can be achieved as well, comprising: water supply means disposed in the body of the cleaner for storing a predetermined quantity of water therein; steam generating means for generating steam by heating water supplied from the water supply means; dust collecting means for separating dust from waste water according to operation of the driving means to thereafter collect the same; and a suction head having a suction …
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 May 17, 1994 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2016.
- 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.