Tamper-evident quick twist closure
CA 2490350 A1 · Owner: Stull Technologies · Inventors: Stull, Gene; Auer, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cap (100) with a tamper-evident ring (300) is designed to snap engage a container (200) that is provided with an upper (220) and lower bead (225). A ring of teeth (180) provided along an inside skirt of the cap engage teeth (230) located along an inside wall of the container. When the cap is snapped onto the container, both sets of teeth automatically engage and a plug seal (150) provided on the cap engages the container upper bead (220). By turning the cap (100) clockwise or counterclockwise the side angles of the teeth , force the cap to disengage upwards over the upper bead and unsnap from the container. When the closure is opened for the first time the ring (300) , breaks away …
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 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2025.
- 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.