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Expired Canadian patentCanada

Balance type minute-lengthenable adjuster

CA 2030613 C · Owner: Hwang, Ying-Teh · Inventors: Hwang, Ying-Teh

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 balance type minute lengthenable adjuster able to be applied to caps, breast cups, etc. comprising an adjusting band a buckle, a band pincher, two rings and two bands. One end of the adjusting band is tied with the buckle end then goes orderly through the right ring, the left ring, the band pincher the buckle, and, finally the band pincher once again. The adjusting band is pinched immovable between a positioning flap and a short tube of the band pincher. The positioning flap is able to be pivotally turned up or down to pinch immovable the adjusting band between itself and the short tube after the length of the adjusting band has been adjusted between the two rings.

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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

  • Filed November 22, 1990 and granted November 15, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2012.
  • 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 22, 1990
GrantedNovember 15, 1994
Term endedNovember 22, 2010
Patent numberCA 2030613 C
Classification (IPC)A41C3/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedNov 22, 1990Patent grantedNov 15, 1994Term endedNov 22, 2010

Sources & verification

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