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Expired Canadian patentCanada

Aerosol power system

CA 1291731 C · Owner: Major Mechanical Contractors Ltd. · Inventors: Loychuk, Terrence

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

This invention is directed to a novel bladdertype aerosol power system which can be used in a standard aerosol spray container. More particularly this, invention pertains to an aerosol powering system which utilizes a rubber-type bladder to generate the expulsion power for the aerosol. This system circumvents the need to use volatile propellants which have been demonstrated to be harmful to the protective ozone layer of the earth. A power system for an aerosol spray generating nozzle comprising a) nozzle means adapted to generate an aerosol vapour spray; and b) a hollow resilient means connected to the nozzle means, the resilient means being adapted to contain the liquid used to generate …

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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 November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2008.
  • 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 30, 1988
GrantedNovember 5, 1991
Term endedNovember 5, 2008
Patent numberCA 1291731 C
Classification (IPC)B65D83/14 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedAug 30, 1988Patent grantedNov 5, 1991Term endedNov 5, 2008

Sources & verification

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