Apparatus for germicidal cleansing of water
CA 2247652 C · Owner: Matschke, Arthur L. · Inventors: Matschke, Arthur L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A germicidal water cleansing apparatus having an ellipsoid chamber which contains UV lamps along the major axis of the ellipsoid. Each of the ends of the ellipsoid, has an opening to allow the entry and exit of a fluid. The chamber is formed from an, ultraviolet reflective material such as spun aluminum to allow uniform dispersion of the, ultraviolet radiation throughout the chamber. The fluid is drawn through the chamber, at a rate to assure a high kill rate of microorganisms present in the fluid.
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 17, 1998 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2020.
- 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.