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Expired Canadian patentCanada

Combined toothbrush and gum massage device

CA 1197357 A · Owner: Colgate-Palmolive Company · Inventors: Mark, Reuben

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 dental hygiene device for toothbrushing and gum massage comprises an elongated handle on which a bristle carrying head is pivotable for movement between a first operating position in alignment with the length of the handle and a second operating position at right angles to the length of said handle there being, a rib and groove arrangement for locking the head in either of those positions during normal toothbrushing and/or gum massaging operations but being readily responsive to torque applied by a user to turn the head from one position to another. The head has a central area of tooth engaging hard bristles with areas of, softer bristles at the ends for effective gum massaging.

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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 December 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 15, 1982
GrantedDecember 3, 1985
Term endedDecember 3, 2002
Patent numberCA 1197357 A
Classification (IPC)A45D44/18 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedNov 15, 1982Patent grantedDec 3, 1985Term endedDec 3, 2002

Sources & verification

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