Brew-through cap for thermal container
CA 2129758 C · Owner: Midden, William E. · Inventors: Midden, William E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lid assembly for use with a beverage container which retains and dispenses beverages therefrom. The container includes a body having a reservoir chamber and a mouth communicating with the reservoir chamber. The lid assembly is cooperatively attachable to the body of the container for selectively closing the mouth. The lid assembly includes an exterior segment and an interior segment which are spaced apart and define a lid chamber therebetween. A breathing vent is provided in the exterior segment for communication between the outside atmosphere and the lid chamber. An anti-spill vent is provided with the vent for preventing leakage of liquid therethrough when the container is tipped. A …
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 August 9, 1994 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2016.
- 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.