Foamer trigger dispenser with sealing device
CA 2120853 C · Owner: Continental Sprayers International, Inc. · Inventors: Nelson, Philip L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is particularly directed to a trigger sprayer having structure for foaming a dispensed liquid where the structure is adapted for adjustments to vary the foam pattern of the dispensed liquid to obtain an optimum foam pattern for any particular liquid and to, the incorporation of a device integral with the sprayer nozzle housing for sealing the opening of a foam dispensing passage of the foamer trigger sprayer.
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 8, 1994 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2016.
- 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.