Tamperproof molded package
CA 1101796 A · Owner: Anchor Hocking Corporation · Inventors: Acton, Daniel D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, An improved package is described of the type used for packaging food products and other products. A molded plastic container is sealed with a closure cap. In order to prevent unauthorized or undetected opening of the container a, tamperproofing means is provided in the form of a tamperproofing band molded integrally with the container. This band is positioned so that it encloses at least the bottom edge of the closure cap skirt when the cap is applied to the container. This requires at least a portion of the band to be removed before the cap can be removed from the container.
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 May 26, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 1998.
- 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.