Non-symmetrical nose for symmetrical bar body
CA 1048907 A · Owner: Omark Industries · Inventors: Hille, Arvin A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A guide bar for a chain saw having a main body portion that is symmetrical so as to be invertible, i.e. to reverse the top and bottom edges, and including a nose portion having fixed top and bottom positions that is removably attached to the outer end of the main bar portion. Said nose portion is non-symmetrical with the upper quadrant of the nose sharply curved away from the top edge and the lower quadrant gradually curved back to the bottom edge. Whereas the main body portion can be inverted the life, of that portion of the bar is greatly increased.
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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
- 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.