Method of manufacturing steering wheel
CA 2034029 C · Owner: Abiko, Toru · Inventors: Yasuda, Hiroshi; Harata, Mitsuru; Sakane, Katunobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a steering wheel in which, a coating layer is molded of a synthetic resin by using a, molding die unit, on at least the annular portion of a steering wheel core including a boss, the portion located around the boss and having a groove extending in the circumferential direction of the portion and spokes coupling, the boss and the portion to each other characterized by, comprising a die opening step in which an upper and a lower molding dies, which have a gate formed at the separation surfaces of the dies and communicating with the molding cavity of the die unit, are opened from each other; a core setting step in which the core is set in the cavity so that the …
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
- Filed January 11, 1991 and granted July 5, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2013.
- 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.