Patent Yard Sign in
Expired Canadian patentCanada

Multiple-density fibrous acoustical panel and method of making same

CA 1096776 A · Owner: Allen Industries, Inc. · Inventors: Flowers, Thomas A.; Vinch, Samuel D.; Marra, Anthony W.

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

An improved acoustical and trim acoustical panel suitable for use in the interior passenger compartments and exterior components of automotive vehicles or the like comprising, a plurality of fibrous layers of controlled different density integrally united together at their interfaces and optionally provided with a decorative finish on one or both outer face surfaces thereof. The invention is further directed to novel methods for making such trim panels incorporating preselected contours and localized embossments therein to conform to the contour of the structural panels of vehicle bodies over which the trim panels are adapted to be mounted. In accordance with one process embodiment, a …

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 March 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
  • 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 16, 1978
GrantedMarch 3, 1981
Term endedMarch 3, 1998
Patent numberCA 1096776 A
Classification (IPC)B32B27/02 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMay 16, 1978Patent grantedMarch 3, 1981Term endedMarch 3, 1998

Sources & verification

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