Two-piece, flip-top closure
CA 2236994 C · Owner: Exner, Victor T. · Inventors: Exner, Victor T.; Mengeu, Gary L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispensing closure is molded as a base having an end wall with a dispensing orifice and a lid having a fixed section and a moveable section joined by an integral hinge. The fixed section of the lid is mounted on the base by a socket and plug connection in which the socket includes a central prong and the plug has a central recess. The socket and plug are sized for an interference fit but with chamfered edges, providing a lead in. In addition the recess in the plug is tapered at a greater angle than the prong in the socket, so that as the plug engages the socket and the prong enters the recess in the plug, the plug is wedged outward into tight engagement with the socket. Extensions or …
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 May 7, 1998 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2020.
- 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.