Discharge container
CA 2616469 C · Owner: Iizuka, Shigeo · Inventors: Iizuka, Shigeo; Mizushima, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A discharge container comprising a container body and a , discharge pump. The discharge pump includes a cylinder member having a large-diameter cylinder, a piston member and a nozzle head. The piston member includes a piston a piston guide, an , air piston, an air piston valve and a stem. The air piston includes an inner tube part engaged with the piston guide an , upper wall part having an air hole and a sliding tube part , slidably engaged with the inside of the large-diameter cylinder. The stem includes a lower tube part engaged with the piston guide to form a gas-liquid mixing chamber including a ball valve internally at the upper part of the piston guide and slidably engaged …
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 July 27, 2006 and granted June 6, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.