Plastic insert for bottle closures such as crown corks
CA 1048968 A · Owner: Brandtberg, Kai · Inventors: Brandtberg, Kai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plastic insert for sealing caps such as Crown Corks which is capable of forming a seal impermeable to liquid when it is pressed by the cap against the beaded mouth of a container. The insert comprises a central projection directed towards the interior of the container. This projection may comprise a transverse hole and/or a longitudinal hole rendering it possible to apply by means of a drawing pin or a safety pin or sew by means of a needle the insert onto a blouse or a display card board. In this manner the insert may be used as a trimming thus offering a certain advertisement to the manufacturer of the contents of 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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
- 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.