Wear strip assembly for use in a waste water treatment facility
CA 2185596 C · Owner: Wilcher, Stephen B. · Inventors: Lodholz, John C.; Wilcher, Stephen B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a wear strip assembly for use in a waste water treatment facility comprising, an anchor plate secured to the bottom of a tank and a wear strip disposed around the anchor plate, having a c-shaped cross section . The wear strip may be slid onto the anchor plate. These is also, provided a waster water treatment system employing the wear strip assembly.
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 September 16, 1996 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2018.
- 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.