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Expired Canadian patentCanada

Multipurpose cleaning and transportation system

CA 1232417 A · Owner: Oy Wartsila Ab · Inventors: Huisma, Camiel

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A C T (Fig. 1), The Invention relates to a multipurpose cleaning and transportation system. The system comprises a vacuum generating device and a liquid collecting container (10) which by a main pipe system (15) is connected to normally closed sockets (24). Dust cleaning tools (26,27) can be connected to the sockets In order to create a passage from the tool to the main pipe system. The said pipe system is via a pipe (31) connected to a liquid absorbing hand tool (32) which is placed at a kitchen sink or the like for taking up liquid, crumbs and the like. It can also be connected to one or several liquid-supplying units, for instance sanitary equipments (17).

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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 February 9, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 9, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 7, 1985
GrantedFebruary 9, 1988
Term endedFebruary 9, 2005
Patent numberCA 1232417 A
Classification (IPC)B60S1/64 +1 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedAug 7, 1985Patent grantedFeb 9, 1988Term endedFeb 9, 2005

Sources & verification

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