Container and method and device for producing same
CA 1232555 A · Owner: Plm Ab · Inventors: Jakobsen, Kjell M.; Nilsson, Torsten
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure describes a method of producing a container comprising a preform having a bottom closure of substantially amorphous material and a cylindrical portion which, at least adjacent the bottom closure forms a ring-shaped region which consists of material oriented along the axis of the preform with an orientation corresponding to that produced in a sheet of the material stretched monoaxially to cause material flow and reshaping the bottom closure to form a bulge directed towards the interior of the container. The container is also described.
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 9, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 9, 2005.
- 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.