Brake shoe rib and a method of making same
CA 1306959 C · Owner: Sheets, James H. · Inventors: Sheets, James H.; Paton, Geoffrey T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Brake shoe ribs are formed in a continuous strip stock utilizing a method to decrease the amount of trim stock. The strip stock is selected to have a width substantially equal to the maximum dimension between the ends of a rib to eliminate trim stock along the edges of the strip. Each rib is formed with a pair of notches in an outer radius and the ends of an adjacent rib extend into the notches to reduce the amount of trim stock between the ribs.
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 September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- 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.