Continuous blow molding process for large capacity containers
CA 2511066 C · Owner: Lupke, Stefan A. · Inventors: Lupke, Manfred A. A.; Lupke, Stefan A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for the manufacture of large capacity containers uses a series of mold block pairs that shape a parison of extruded plastic. The series of circulating mold block pairs allows the continuous manufacture of containers and effectively separates the cooling time from the molding stop. The vertical extrusion downwardly also assists in the process.
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 June 29, 2005 and granted February 11, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.