Patent Yard Sign in
Expired Canadian patentCanada

Forming system for thermoformable parts with flexible web coverstock

CA 1291935 C · Owner: Ford Motor Company Of Canada, Limited · Inventors: Woodrich, Kenneth H.

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 present invention is directed to a method of manufacturing a thermoformed, form-retaining article comprising a form-retaining thermoformable substrate and a flexible web coverstock. The method comprises feeding a continuous strip of the flexible web coverstock through a thermoforming line comprising at least a lamination station, a thermoforming station and transport means. Sheets of the substrate are fed into the lamination station and there laminated to said continuous strip of coverstock material. The coverstock is wider than the substrate sheetstock laminated thereto and thus, it, extends laterally beyond the sheetstock i.e. it has, free longitudinal edges. The transport means …

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 November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 19, 1988
GrantedNovember 12, 1991
Term endedNovember 12, 2008
Patent numberCA 1291935 C
Classification (IPC)B29C69/00 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMay 19, 1988Patent grantedNov 12, 1991Term endedNov 12, 2008

Sources & verification

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