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Expired Canadian patentCanada

Fluid treating apparatus

CA 2227875 C · Owner: Vrtx Technologies, Llc · Inventors: Ashbrook, Clifford L.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An apparatus (10) for treating fluids by increasing the fluid's rate of diffusion, removing minerals in solution releasing entrained gases, and , destroying bacteria includes a pair of cascaded vortex nozzles (26-29) positioned in opposed relation. Each of the vortex nozzles (26-29) communicates with a fluid source (14) to receive a fluid stream which it rotates. The cascaded vortex nozzles (26 29) feed their rotating fluid stream , into the rear of the vortex nozzle (27-28) with which they are cascaded. The rotating fluid streams fed into the vortex nozzles (26-29) combine with the rotating fluid stream within each nozzle. The combined streams then circularly rotate and exit the …

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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 July 25, 1995 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 25, 1995
GrantedOctober 9, 2001
Term endedJuly 25, 2015
Patent numberCA 2227875 C
Classification (IPC)C02F1/20 +2 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedJuly 25, 1995Patent grantedOct 9, 2001Term endedJuly 25, 2015

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.