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Expired Canadian patentCanada

High temperature coriolis mass flow rate meter

CA 1323215 C · Owner: Micro Motion, Inc. · Inventors: Van Cleve, Craig Brainerd; Cage, Donald Reed

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

Apparatus is disclosed for a Coriolis mass flow rate meter and specifically such a meter that is suited for operation at relatively high temperatures such as in excess, of approximately 500°F (approximately 260°C) and preferably as high as 800°F (approximately 427°C) and that does not, utilize a cooling purge.

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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

  • Granted October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 18, 1989
GrantedOctober 19, 1993
Term endedOctober 19, 2010
Patent numberCA 1323215 C
Classification (IPC)G01F1/84

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedAug 18, 1989Patent grantedOct 19, 1993Term endedOct 19, 2010

Sources & verification

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