Aerosol dispenser
CA 2057285 A1 · Owner: Whitfield, Robin · Inventors: Malloch, Bruce Edward; Whitfield, Robin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aerosol dispenser comprises a housing within which an aerosol container can be removably located. A dispensing nozzle arrangement is provided through which aerosol contained in the container can be dispensed. A valve means provides communication between an outlet of the aerosol container and the spray nozzle arrangement. Electronic control means activate the valve means so as to facilitate a metered dosage of aerosol to be dispensed from said spray nozzle arrangement. In the preferred arrangement the valve means includes a solenoid for operation of the valve means.
Read the whole patent
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 December 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.