Walk-behind self-propelled snow removing machine
CA 2553591 C · Owner: Shimizu, Norikazu · Inventors: Shimizu, Norikazu; Yamazaki, Nobuo; Yanai, Kiyomi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A walk-behind self-propelled snow-removing machine includes a snow-removing-unit posture control member disposed on an operating section at one side thereof a travel ready lever comprised of a deadman's lever mounted on one operation handlebar at the other side of the operating section and a mode selector switch disposed on the operating section and located forwardly of the travel ready lever for selecting one of plural alternative snow removing operation modes that are set in advance in a control unit on the basis of a travel speed of a machine body a revolving speed of an engine, and an opening of a throttle valve.
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 26, 2006 and granted May 20, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.