Lift off mechanism for a vacuum cleaner
CA 2181876 C · Owner: Fantom Technologies Inc. · Inventors: Garner, David P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An upright vacuum cleaner for cleaning a surface comprising:, (a) a longitudinally extending ground engaging portion having a surface cleaning nozzle, rear wheels and lift off wheels the, lift off wheels positioned forwardly of the rear wheels and moveable between a raised operating position and a lowered storage position; (b) a handle pivotally mounted on the ground engaging portion, the handle moveable between a lowered storage position and a raised operating position, the handle having a lower portion; (c) first transfer member having first and second engagement surfaces, each of the surfaces moveable between a first position in which the lift off wheels are in the raised operating …
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 July 23, 1996 and granted December 31, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 23, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2018.
- 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.