Packing containers and a method for their manufacture
CA 1065753 A · Owner: Ab Ziristor · Inventors: Knutsson, Kent I.E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a packing container of a laminated material which is formable by a heat shrinking process and which comprises a carrier layer of foamed plastics said container having a substantially tubular part and at least one end plate said end plate comprising a material plate located within the tubular part, and adjacent an end thereof the per-, ipheral area of said material plate being sealed to a region of the tubular part folded in by shrinkage to fit against the underside of the material plate. The present invention also provides a container in accordance with claim 1 in which the region, shrunk to fit against the underside of the material plate is said end of said …
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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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 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.