Expired Canadian patentCanada
High temperature slip agent for polyolefin film
CA 1340598 C · Owner: Lecomte, Leon · Inventors: Kersten, Jean; Lecomte, Leon
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high temperature slip agent for polyolefin films comprising a polyamide. The polyamide is blended with the polyolefin film so that the polyamide constitutes approximately 1 to about 4 percent of the blend.
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 June 22, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 22, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 6, 1986
GrantedJune 22, 1999
Term endedJune 22, 2016
Patent numberCA 1340598 C
Classification (IPC)C08L23/02 +2 more
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.