Tamper resistant closures
CA 1286630 C · Owner: Johnsen & Jorgensen Plastics Limited · Inventors: Mclaren, Kevin W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container closure and container body assembly in which the container body has a mouth and an external annular or substantially annular projecting bead around the outside of the body below the mouth and in which the closure comprises a cap part and a tamper resistant band connected to the cap part by frangible means in which the tamper resistant band is provided with a plurality of spaced apart individual lugs on the inner surface of the band to co-operate with the external projecting bead around the outside of the container body.
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 July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
- 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.