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Expired Canadian patentCanada

Drum washer-drier which reduces vibration to floor and operating method thereof

CA 2196262 C · Owner: Noguchi, Takeo · Inventors: Ando, Masaru; Noguchi, Takeo

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 drum washer-drier includes a drum rotating about a horizontal rotary axis, a water tank including a drum and an, outer tank resiliently supporting the water tank. A plurality of suspending rods are suspended from an upper inner surface of the outer tank, and the water tank is resiliently supported by providing compression springs between spring-receiving portions at lower ends of suspending rods and support-receiving portions of the water tank. Further, a damper generating a sliding resistance as the spring is expanded/compressed is provided at the lower end portion of each suspending rod. At the time of dehydration, the drum is rotated for a prescribed time period at a rotation speed …

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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 January 29, 1997 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2019.
  • 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 29, 1997
GrantedDecember 5, 2000
Term endedJanuary 29, 2017
Patent numberCA 2196262 C
Classification (IPC)D06F37/04 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJan 29, 1997Patent grantedDec 5, 2000Term endedJan 29, 2017

Sources & verification

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