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Expired Canadian patentCanada

Long-handled brush suitable for cleaning hollow bodies

CA 1297243 C · Owner: Klotz, Manfred · Inventors: Klotz, Manfred

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

Abstract;, The invention relates to a long-handled brush suitable for cleaning hollow bodies, e.g. drinkware bottles, thermos flasks, bowls, vases, etc. The brush comprises a handle and a removable cleaning head. The cleaning head has an elastic core and an outer covering of fell or felllike material, such as natural sheepskin. A headed bolt is preferably used to attach the cleaning head to the handle, with the bolt extending through a central longitudinal channel in the head. The cleaning head is preferably cylindrical and the handle may be telescopically extendable.

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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 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 23, 1988
GrantedMarch 17, 1992
Term endedMarch 17, 2009
Patent numberCA 1297243 C
Classification (IPC)A46B3/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 23, 1988Patent grantedMarch 17, 1992Term endedMarch 17, 2009

Sources & verification

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