Cup container with integral closure
CA 2097768 C · Owner: Gsd Packaging Llc · Inventors: Cai, Liming
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container formed of foldable sheet material including a body of a slightly tapered inverted conical configuration having opposed pairs of closure flaps integrally hinged to the upper rim of the body and foldable to overlie the upwardly directed open mouth of the container. The inward folding of the flaps inwardly flew corresponding portions of the body wall to a generally rectangular configuration adjacent and downward from the rim. The outer flaps interlock by a cooperating tongue and slot. In variations integral or, bonded handles are provided to overlie the closed container. Additional sealing at the defined corners between adjacent flaps is achieved by integrally formed folding …
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 June 4, 1993 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2015.
- 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.