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Expired Canadian patentCanada

Mechanism for opening and closing toilet seat and cover

CA 1304541 C · Owner: Kawamoto, Masanobu · Inventors: Moriwaki, Masazumi; Kobayashi, Keiichi; Kawamoto, Masanobu

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 detachable opening and closing structure for stool seat and cover, wherein a resistance mechanism is not actuated when opening the seat and cover but turns, them quickly within a predetermined range of angles and then operates slowly for closing, and an erection mechanism applicable preferably to such mechanism is provided further thereto. Accordingly, when opening the seat and cover, these can be handled lightly as in the case of normal seat and cover, and closed within a short time despite being loaded with a resistance. Shocks from the opening and closing mechanism to the stool side are relieved, thus preventing members from damage loose, work and the like. Further, it is not necessary …

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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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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.
FiledJanuary 25, 1989
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304541 C
Classification (IPC)A47K13/12 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedJan 25, 1989Patent grantedJuly 7, 1992Term endedJuly 7, 2009

Sources & verification

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