Method and apparatus for the processing of medical waste materials
CA 2118019 C · Owner: Placzek, Terrance M. · Inventors: Placzek, Terrance M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and method for processing medical waste comprising an elongate cylindrically configured pressure vessel (A) having an inlet (30), and a closure member (40) therefor. An elongate cylindrical drum (D) is mounted in the vessel (A) for being driven in rotation in either direction. The drum (D) is inclined at an angle to the horizontal with its inlet (50) elevated. A helically configured member (80) is disposed around the drum interior such that the helical member (80) moves waste material away from the drum inlet (50) during rotation in a first direction whereas during opposite rotation, the helical member (80) moves waste toward the inlet (50). The helical member (80) is utilized in …
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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 May 20, 1992 and granted April 28, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2014.
- 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.