Electric vacuum cleaner, and vacuum cleaner hose
CA 2647384 C · Owner: Panasonic Corporation · Inventors: Sunaba, Kenichiro; Ito, Koichi; Hashizume, Kiyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric vacuum cleaner according to the present invention includes a cleaner main body 16 and a suction unit 24 which is rotatably disposed at the bottom of the cleaner main body 16 and includes a suction port 23 and a rotary brush 25. The cleaner main body 16 includes a dust collecting chamber 19 and a fan chamber 18 equipped with an electric fan 17 disposed at the bottom thereof. A handle 21 having a grip portion 20 and a control circuit board 22 are installed above the dust collecting chamber 19. Components such as the handle 21 and the electric fan 17 are installed at the rear of the cleaner main body 16. With this configuration the vacuum cleaner is prevented from falling down when …
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 January 29, 2001 and granted July 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 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.