Method and apparatus for the purification of liquids
CA 2088929 C · Owner: The Sy-Klone Company, Inc. · Inventors: Moredock, James C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A purification method and device for purifying industrial oils from contaminates including a first container housing for receiving the industrial oil in bulk and separating liquid and particulate contaminates therefrom by reversing a flow direction of the received oil. The thus processed oil is transferred to a second container and is subjected to a further filtration by forcing the oil under high pressure through at least one filter element accommodated in the second container. The high pressure on the at least one filter element results in a compression of the at least one filter element thereby precluding the oil being processed from bypassing the filter element. A further filter barrier …
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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 February 5, 1993 and granted July 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2015.
- 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.