Cutter assembly
CA 1317167 C · Owner: Govan, Donald T. · Inventors: Govan, Donald T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device mounted in encircling relation to a propeller shaft. The device cuts lines, nets and weeds thus preventing, entanglement of the propeller and preventing entanglement damage which may result to the parts of the driven assembly of the outboard, inboard/outboard or trolling motor vessels. The device includes a non-rotatable, annular cutting ring member having one or more double-edged cutting blades, that is disposed in sandwiched relation to two rotatable annular members. One of the rotatable members carries no cutting blades and the second, rotatable member carries a plurality of double-edged circumferentially spaced blades that individually cooperate with the non-rotatable blade in …
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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 May 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 2010.
- 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.