Improved trigger sprayer apparatus
CA 2129677 C · Owner: Continental Acquisition Corp. · Inventors: Foster, Donald D.; Laffey, Martin S.; Nelson, Philip L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved trigger sprayer apparatus (10) is comprised of a venting system (18, 84,92) that allows air to enter a liquid container (26) connected to the apparatus as the apparatus dispenses liquid from the container a trigger member (20) of the apparatus that provides reliable operation and prevents the inadvertent disconnection of the trigger member from the apparatus a gasket, (106) connected to the apparatus between the liquid container and the apparatus, and a fluid conduit (32) communicating with a nozzle orifice (158) of the apparatus that centers a fluid spinner (152) of the apparatus relative to the orifice. A discrete vent housing (14) and spraying housing (12) are provided.
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 30, 1992 and granted February 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 2014.
- 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.