Melt extruded polymeric compositions and processes of moulding them
CA 1323169 C · Owner: White, Steven Andrew Carl · Inventors: White, Steven Andrew Carl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Melt Extruded Polymeric Compositions and Processes of Moulding Them, Moulded articles such as gaskets for container caps are made from a thermoplastic composition at high speed for instance, above 100 per minute, by continuously cutting a continuous supply of molten thermoplastic composition into molten pieces and transferring the molten pieces to a moulding position at which they are moulded into the gaskets or other desired articles and the compo-, sition includes a melt-release material that continuously replenishes a melt-release layer on the surfaces by which the molten composition is cut and transferred to the moulding position.
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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 October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
- 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.