Removable resistant container cap and neck assembly
CA 1256402 A · Owner: Owens-Illinois, Inc. · Inventors: Libit, Sidney M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container having a threaded neck is provided with a removal resistant cap which can be applied to the container neck by rotational thrust. The cap has a depending skirt having an internally threaded lower section with the threads terminating in a bead intermediate the ends of the skirt. The neck has an upper threaded section with the threads terminating in a bead spaced below the top of the neck. When the threads of the cap are engaged with the threads of the neck and the cap is rotated relative to the neck, the skirt will circumferentially expand so that the skirt bead passes over the neck bead. At that point, the threads will no longer engage and the interlocked beads will inhibit …
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
- Granted June 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 27, 2006.
- 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.