Manufacture of spigoted and wide-necked casks
CA 2047385 C · Owner: Schutz-Werke Gmbh & Co. Kg · Inventors: Schutz, Udo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The method for manufacturing spigoted casks which was, developed with the aim of obtaining injection mounded lids and blow moulded cask bodies that are true to size is characterized, by: the blow moulding of double cask bodies from plastic and the central separation thereof into two bodies; the manufacture by injection moulding of spigoted lids from plastic; cooling of the cask bodies and the spigoted lids to size in cooling and calibrating sections following the blow moulding machine for manufacture of the double cask bodies, and the injection moulding machine for the cask lids; and, welding of the spigoted lids to the cask bodies. The method for manufacturing wide-necked casks …
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
- Filed July 18, 1991 and granted March 22, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2013.
- 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.