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Expired Canadian patentCanada

Decorative stereo speaker

CA 1072712 A · Owner: Mccarthy, Peter · Inventors: Mccarthy, Peter

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A decorative enclosure and a method for making such enclosure is disclosed in which a face mask of a person is made by applying a liquid material to the face the material hardening, at body temperature after which a casting is made from the hardened material. A hollow base is positioned in the casting before it is set and a sound speaker is mounted in the frame. A plastic coating is applied to the casting, the coating once hardened being painted in colors to duplicate the face on which the film was cast. In this manner, a personalized hi-fidelity speaker enclosure may be obtained.

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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

  • Granted March 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMarch 4, 1980
Term endedMarch 4, 1997
Patent numberCA 1072712 A
Classification (IPC)B44C3/04

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMarch 4, 1980Term endedMarch 4, 1997

Sources & verification

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