Composite member and method for making the same
CA 2028875 C · Owner: Motoda, Takashi · Inventors: Motoda, Takashi; Abe, Mutsumi; Aota, Ken-Ichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite member which comprises at least two molding members made of different compositions each comprising a metallic powder and/or a ceramic powder and a resin material is described. The at least two molding members are fully integrated through bonding of the resin materials in the respective members. A method for fabricating the composite member is also described, in which at least one molding member is bonded with another member which is filled in molding dies in the form of a powdery mixture and heated to a temperature sufficient to melt resin materials in the respective members to integrally bond the members through bonding of the resin materials.
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 October 30, 1990 and granted December 13, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2012.
- 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.