Disposable adhering beverage container cover
CA 2288568 C · Owner: Brown, Norma · Inventors: Brown, Norma
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A beverage container cover prevents the introduction of any contaminants into the beverage container. The beverage container cover includes a, sealing layer including a top side and a bottom side a straw extending on , either, side of the sealing layer and able to prevent a contaminant from passing therethrough and an adhesive substance extending about a periphery of the bottom side of the sealing layer for forming a seal with a rim of the container. A, lip extends about a periphery of the top side for engaging the rim of the container, and strengthening the seal therebetween. The cover further includes a second protective layer removably connected to the top side and covering a top …
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 November 8, 1999 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2021.
- 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.