Container lid
CA 2002107 C · Owner: Zeller, John · Inventors: Newman, Alec Thomas; Zeller, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention discloses a lid for a drinking cup, which comprises a base portion having an upstanding collar formed around the periphery thereof the collar, having an inner wall terminating in a rim provided with at least on orifice adapted, in use, for a beverage to be drunk therethrough, and having a skirt extending downwardly from the rim which, in use, is adapted to frictionally engage the rim of a cup containing the beverage, and the base portion being provided with a hole adapted, in use, for the introduction of the beverage and/or beverage making ingredients therethrough.
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 2, 1989 and granted November 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 2, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.