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Expired Canadian patentCanada

Actuator casing

CA 2572941 C · Owner: Flaugher, Joseph David · Inventors: Anderson, Paul Richard; Scott, Gary Lynn; Pfantz, Douglas Craig

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

Methods and apparatus are disclosed for a substantially non-porous non-, ferrous actuator casing (100) for housing a diaphragm (208) and diaphragm plate for use with a valve. The actuator casing includes first (102) and second (104) portions of forged aluminum and first (106) and second (108) flanges around the perimeters of the first and second portions respectively. , The flanges each further have at least one aperture. Also there is at least , one fastening device (110) that connectively couples the first and second flanges via their respective apertures.

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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 20, 2005 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 20, 2005
GrantedApril 2, 2013
Term endedJuly 20, 2025
Patent numberCA 2572941 C
Classification (IPC)F16K31/12 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 20, 2005Patent grantedApril 2, 2013Term endedJuly 20, 2025

Sources & verification

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