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Expired Canadian patentCanada

Diet mask

CA 1162002 A · Owner: Morrison, Roger · Inventors: Morrison, Roger

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 mask for use by dieters said mask being molded or, formed to cover the mouth and the chin of a user and having straps, projecting therefrom adapted to hold said mask adjacent the chin and mouth of the user, by being secured over the user's head and around the back of his neck. A latch may be used which requires third party assistance for removal thereof and a hole in the mask permits the user to drink liquids through a drinking straw. The drinking straw hole may be too small to permit entry of a cigarette and thus the mask may also be used to assist in control of a smoking habit. The mask may be of transparent material, or flesh-coloured to minimize its, visual effect.

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 February 14, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 28, 1981
GrantedFebruary 14, 1984
Term endedFebruary 14, 2001
Patent numberCA 1162002 A
Classification (IPC)A63B71/00 +1 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedJuly 28, 1981Patent grantedFeb 14, 1984Term endedFeb 14, 2001

Sources & verification

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