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Expired Canadian patentCanada

Method and apparatus for force balancing

CA 2562284 C · Owner: Pankratz, Anthony William · Inventors: Pankratz, Anthony William; Loving, Roger Scott; Garnett, Robert Barclay

CIPO record

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

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Abstract From the Canadian patent

A Coriolis flow meter comprising a pair of flow tubes (301 302), a drive , system (D) comprising a coil component (L) and a magnet component (M) that are sized and located such that the momentum of the coil component is equal and opposite to the momentum of the magnet component.

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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 16, 2004 and granted November 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.
FiledApril 16, 2004
GrantedNovember 13, 2012
Term endedApril 16, 2024
Patent numberCA 2562284 C
Classification (IPC)G01F1/84

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 16, 2004Patent grantedNov 13, 2012Term endedApril 16, 2024

Sources & verification

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