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Expired Canadian patentCanada

Compatible blends of thermoplastic molding compositions

CA 2470223 C · Owner: Rhein Chemie Rheinau Gmbh · Inventors: Tebbe, Heiko; Mueller, Volker

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention relates to compatible blends of per se incompatible, thermoplastic molding compositions to methods for the production thereof, and to the use of the blends according to the present invention to produce films fibers and molded articles.

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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 June 7, 2004 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 7, 2004
GrantedNovember 20, 2012
Term endedJune 7, 2024
Patent numberCA 2470223 C
Classification (IPC)C08L79/08 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 7, 2004Patent grantedNov 20, 2012Term endedJune 7, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.