Very high solid content aerosol delivery system
CA 2344848 A1 · Owner: Premark Rwp Holdings, Inc. · Inventors: Pechal, Kenneth Charles; Purvis, Daniel Charles Ii; Ach, John James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an aerosol spray device comprising:, a spray can;, a valve mounted to the can; a button mounted to the valve to control opening and closing of the valve, the button having an exit port in fluid communication with an interior of the, can when the valve is open; and a nozzle, mounted to the exit port of the button said nozzle, including a throughbore having a flow restrictor proximate to the throughbore's exit end, and having a substantially rectangular exit port the port having at least one , pair of opposite walls flaring outward from the flow restrictor at an angle of about 20 to about, 75°, wherein the spray can has an interior and the interior …
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 April 23, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2023.
- 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.