Synthetic resin ball bearing
CA 1233498 A · Owner: Kabushiki Kaisha Chubu Bearing Seisakusho · Inventors: Tanaka, Kouichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A synthetic resin ball bearing. It comprises an outer race, an inner race and a plurality of balls provided there between. The outer race is composed of a first cup-shaped member and a second cup-shaped member. Each cup-shaped member has an opening in the center of the floor portion. The first cup-shaped member is sized to snugly fit generally in the second cup-shaped member. The inner race has an annular shape to be positioned to extend through said respective openings in the first and second cup-shaped members to define an annular chamber in cooperation of said first cup-shaped member and the floor wall of the second cup-shaped member. The annular projection extends into the chamber to …
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 March 1, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 1, 2005.
- 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.