Tamper-evident lid assembly
CA 2430205 A1 · Owner: Huhtamaki (Uk) Ltd · Inventors: Marshall, Neil R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lid assembly comprising a lid portion (2) and a frame portion (4) one said , portion being adapted to receive the other portion to seal a container (12) fitted with the lid assembly wherein the receiving portion has tamper-evident means connected thereto as a frangible bridge (24) while the other portion has a hinged tab (28) and wherein, in the untampered state the frangible bridge , (24) is intact and prevents rotation of the hinged tab while on breaking the , frangible bridge, the hinged tab (28) is able to rotate about its hinge allowing opening of the lid.
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 12, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2024.
- 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.