Device for purifying a flow of liquid by means of ultraviolet radiation
CA 2103848 A1 · Owner: Terminator Water Products Inc. · Inventors: Buchwald, Claus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device for purifying a flow of liquid by means of ultraviolet radiation, comprises an elongated ultraviolet lamp; a generally tubular inner casing surrounding substantially the lamp, the casing being made of a material that allow transmission of ultraviolet radiation the casing, having an aperture at each end thereof from which the electrical terminals of the lamp protrude; and a generally tubular outer casing surrounding the inner casing and forming with it a flow passage, the outer casing being provided at substantially each of its ends with inlet and outlet for the flow of liquid. Two connectors are disposed respectively at both ends of the device for securing the lamp and the inner …
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 August 11, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 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.