Continuous system for processing synthetic thermoplastic materials
CA 2125894 C · Owner: Neubauer, Anthony Charles · Inventors: Neubauer, Anthony Charles; Blakeslee, Theodore Robert, Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A continuous pelletizing system for pelletizing synthetic thermoplastic materials which includes: (1) a melter/mixer for at least partially melting and mixing synthetic thermoplastic material; (2) a gear pump operatively associated with said melter/mixer for increasing pressurization of said melted synthetic thermoplastic material;, (3) an independently controlled secondary mixer operatively associated with said gear pump or said melter/mixer including means for providing additional independent mixing of said melted synthetic thermoplastic material; and (4) a pelletizer operatively associated with said independently controlled secondary mixer or said gear pump for forming pellets of …
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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
- Filed June 15, 1994 and granted November 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 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.