Lawn mower blade
CA 1203692 A · Owner: Outboard Marine Corporation · Inventors: Seyerle, Carl E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
OF DISCLOSURE, . Disclosed herein is a cutter blade for a rotary lawn mower, which cutter blade is generally of elongated rectangular outline and includes a leading edge, a trailing edge, a longitudinal axis extending lengthwise between the leading and trailing edges a, generally planar outer end portion including a cutting edge forming a part of the leading edge and an outer tip, and a sail portion extending from outer end portion along a form line extending between the outer tip and the trailing edge at a form angle within the range of 25 degrees to 35 degrees to the longitudinal axis. The sail portion also has an upper edge which is spaced above a horizontal plane containing the cutting …
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
- Granted April 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 29, 2003.
- 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.