A blade for a snow plough
CA 2584047 C · Owner: Ruuska, Mauno · Inventors: Ruuska, Mauno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A blade (3) meant to work in the curved form of a snow plough and attached from its lower edge to a rigid beam, the upper edge of which is supported by means of upper beam (12) or similar, and said blade is of flexible material as plastic sheet. The blade is from its upper beam (12) essentially from its , middle, supported by suspension means (9) which due to the ploughing load , allows upper beam (12) and blade (3) upper edge to tilt and blade (3) to change the radius of curvature at least from the suspension spot on the blade area toward the blade point .
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 11, 2005 and granted December 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2025.
- 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.