Ceramic mold and method of production
CA 1203659 A · Owner: Crucible Materials Corporation · Inventors: Chandhok, Vijay K.; Brosius, Karl S.; Mccollough, William L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic mold for use in the production of powder metallurgy articles; the mold has a ceramic body with a mold cavity therein conforming substantially to the configuration or the article to be produced. The mold cavity is adapted to be filled with powdered metal which is then compacted to form the article. The improvement of the invention is the mold cavity having a continuous metal coating covering the entire surface thereof so that the powdered metal prior to and during compaction does not come into contact with and be contaminated by the ceramic of the mold body.
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 April 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 29, 2003.
- 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.