Push-tab hinge for a container closure apparatus
CA 2230486 C · Owner: Sig Combibloc, Inc. · Inventors: Miller, C. Daniel; Tokarski, Michael G.; Robichaud, Arthur W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A package closure apparatus is disclosed which has a push-tab connected to a base (12) via a landing (32) which extends into a central opening (30) in said closure and a spring face (38) which extends from said push-tab to connect with the landing (32). The connection between the landing (32) and spring face (38) forms a first junction (40) about which the hinge acts. The connection between the spring face (38) and the push-tab forms a second junction (42) about which the hinge may act.
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 September 3, 1996 and granted July 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2018.
- 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.