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Expired Canadian patentCanada

Ultraviolet radiation water disinfecting device

CA 2514675 C · Owner: Girodet, Pierre · Inventors: Girodet, Pierre

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

The invention concerns an ultraviolet radiation water disinfecting device for an open channel (1) wherein the water to be disinfected flows along a direction D, the device comprising a plurality of longitudinal means (6) forming UV lamps each consisting of a UV lamp (6a) a protective sheath (6b) , made of UV-transparent material and connectors arranged substantially longitudinally along the direction D and being distributed into a plurality of vertical modules (4), each module consisting of a beam (4) whereto are fixed at least two means forming vertical supports (5) housing at least one series of said means forming lamps (6) provided beneath said beam (4) one above the other. 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 March 25, 2004 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 25, 2004
GrantedJuly 17, 2012
Term endedMarch 25, 2024
Patent numberCA 2514675 C
Classification (IPC)C02F1/32

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 25, 2004Patent grantedJuly 17, 2012Term endedMarch 25, 2024

Sources & verification

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