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Expired Canadian patentCanada

Footwear with removable insole

CA 1255497 A · Owner: Kuhn, Margrit · Inventors: Kuhn, Margrit

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

The invention relates to an article of footwear having a removable insole. The insole has nubs and magnetic metal parts on its upper surface for massaging the foot reflex zones, Snap fasteners fasten the insole to the sole. Each snap fastener has an upper part mounted on the lower surface of the insole opposite the magnetic metal part, and a lower part mounted on the sole.

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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 June 13, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 13, 2006.
  • 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 27, 1986
GrantedJune 13, 1989
Term endedJune 13, 2006
Patent numberCA 1255497 A
Classification (IPC)A43B13/00 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedNov 27, 1986Patent grantedJune 13, 1989Term endedJune 13, 2006

Sources & verification

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