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Expired Canadian patentCanada

Automatic hand washer

CA 2221085 C · Owner: Nakamura, Ed · Inventors: Nakamura, Ed

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

This invention relates to a motorized washing machine that will quickly clean a person's, hands. It is used by switching it on and inserting both hands into the porthole openings. The, rapidly moving brushes will quickly scrub the person's hands clean. In drawings that illustrate embodiment of the invention Figure 1 shows the , machine from, the front and Figure 2 shows the machine from a side view. The machine consists of a motor (1), which turns a crank assembly (2) which reciprocates the cleaning brushes (3). A submerged pump, motor (4) sprays heated wash water from the spray nozzle (5) onto both hands and the brush area. The wash water is continually recycled until it is too dirty …

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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 27, 1998 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2020.
  • 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 27, 1998
GrantedJuly 24, 2001
Term endedJanuary 27, 2018
Patent numberCA 2221085 C
Classification (IPC)B08B1/02 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJan 27, 1998Patent grantedJuly 24, 2001Term endedJan 27, 2018

Sources & verification

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