Patent Yard Sign in
Expired Canadian patentCanada

Method of making panels, apparatus for carrying out the method and panels obtained thereby

CA 1300331 C · Owner: Miani, Mario · Inventors: Miani, Mario

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The invention relates to a method for making panels which may or may not be used for subsequent molding to the, apparatus for providing this method and to the panels obtained thereby. The method comprises the steps of forming a mixture of thermoplastic resin and organic filler and the plastication of this mixture performed simultaneously with its formation. During the transfer of the organic filler to the subsequent mixing and plastication step the same is, desiccated and mixed. Moreover during said mixing and, plastication step the plasticated mixture is transferred to a subsequent extrusion step. The method is carried out in an apparatus including a single device for the continuous …

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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
  • 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 1, 1987
GrantedMay 12, 1992
Term endedMay 12, 2009
Patent numberCA 1300331 C
Classification (IPC)B29C70/58 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJune 1, 1987Patent grantedMay 12, 1992Term endedMay 12, 2009

Sources & verification

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