Reciprocating fluid pump with improved bottle seal
CA 2252390 C · Owner: Contico International, Inc. · Inventors: Foster, Donald D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid pump (20) comprises a dispenser body (22) closure cap (54), seal , assembly (34) and priming check valve (88). The dispenser body (22) has a pump (24), discharge port (102), and a discharge path (76). The closure cap (54) is connected to the dispenser body (22) and closes the mouth of the container (56). A first portion (60) of seal assembly (34) prevents leakage between closure cap (54) and the mouth of the container (56) when the closure cap (54) closes the mouth of the container (56). A second portion (62) of the seal assembly (34) has an intake port (78) for fluid communication with liquid in the container (56). The second portion (62) and dispenser body (22) define an …
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 17, 1997 and granted April 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2019.
- 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.