Cream-state fluid container
CA 1232582 A · Owner: Lion Corporation · Inventors: Ogawa, Riichi; Saito, Tadao; Ogita, Hideo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cream-state fluid container having a body capable of being reduced in interior volume by evacuating the interior thereof in negative pressure a head mounted at the top of said body and having a pushbutton and a filling port, a pump unit internally mounted in said head and operated by the pushbutton of said head for dicharging the content of said body to the filling port of said head, said pump unit having a valve mechanism including a suction valve and a discharge valve in such a manner that a valve body is seated on a cylindrical valve seat formed in said head, a pressure chamber formed in a space from said valve mechanism at the position above said valve mechanism, and an elastic cap …
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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
- Granted February 9, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 9, 2005.
- 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.