Process and equipment for making thermoplastic containers, such as bottles
CA 2179404 C · Owner: Outreman, Jean Tristan · Inventors: Feuilloley, Guy; Outreman, Jean Tristan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a process for producing a container (23) capable of subsequently withstanding without significant distortion, harsh heat conditions. This process comprises moulding by a blow-moulding or extrusion-blowing step an intermediate container (2) from a preform (1) wherein the body of the preform is heated to at least the softening temperature of the thermoplastic and the dimensions of the intermediate container being larger than those of the final container (23); producing from the intermediate container, a blank with a hot tapered body of a greater predetermined length than that of the final container (23); moulding or blowing from said blank the body of the …
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 December 27, 1994 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2016.
- 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.