Release treatment for conveyor belt curing
CA 1232729 A · Owner: Zeneca Ag Products Inc. · Inventors: Lewis, Richard K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of molding and the article so molded wherein a non-woven sheet (I) of continuous polymer filaments, preferably having their cross points bonded preferably without or with a filament adhesive is used, as the mold release agent and becomes part of the molded article.
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 February 16, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 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.