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Expired Canadian patentCanada

Portable, self-contained data collection systems and methods

CA 2231663 C · Owner: Watkins, Jeffery P. · Inventors: Schiltz, Richard L.; Bates, Andrew J.; Watkins, Jeffery P.

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

A portable self-contained data collection system for measuring and collecting vibration data from machines includes an accelerometer which is coupled to the analog input of a data acquisition card. The data acquisition card samples and digitizes the analog signal to produce a time domain digital signal. The data acquisition card output is coupled to a batterypowered portable computer. The battery-powered portable computer includes a database having machine identifications and associated measurement parameters. The portable computer processes the time domain digital signal according to the measurement parameters associated with a selected machine identification and, produces a frequency …

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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 September 11, 1996 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 11, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 11, 1996
GrantedMarch 18, 2003
Term endedSeptember 11, 2016
Patent numberCA 2231663 C
Classification (IPC)G01H17/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedSep 11, 1996Patent grantedMarch 18, 2003Term endedSep 11, 2016

Sources & verification

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