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Canadian application, no grantCanada

Control systems for operating gas cleaning devices

CA 2252384 A1 · Owner: Lab Sa · Inventors: Vicard, Jean-Francois; Gallo, Frank

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

Systems and methods for operating gas cleaning devices (20) utilize vibration generators (22, 24, 26) wherein the systems include sensors (30 32, 34) and , programs for monitoring and predicting resonant conditions of different surface zones (A, B, C) in order to vary the frequency and amplitude of vibrations to establish optimum resonant conditions on such surface zones (A B, C) and thereby optimize cleaning and operation of such gas cleaning devices (20).

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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 April 23, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 23, 1997
GrantedNo grant recorded
Term endedApril 23, 2017
Patent numberCA 2252384 A1
Classification (IPC)B01D29/66 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedApril 23, 1997Term endedApril 23, 2017

Sources & verification

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