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Expired Canadian patentCanada

Microprocessor based bed patient monitor

CA 2354688 C · Owner: Smith, Toby E. · Inventors: Smith, Toby E.; Holmes, Fred H.; Lovely, Patrick W.

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

This invention relates generally to monitoring systems and more particularly concerns devices and systems used to monitor patients lying in hospital beds or in other care giving environments. According to a first aspect of the instant invention a microprocessor based patient monitor is disclosed which includes a loudspeaker driven by a power amplifier responsive to an input signal derived from a programmable volume control. The microprocessor synthesizes any one of multiple alarm sounds under software control operates the programmable volume control of the alarm system and activates and deactivates the alarm in response to the electronic signals received from the sensor and a user …

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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 February 25, 1999 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 25, 1999
GrantedAugust 19, 2003
Term endedFebruary 25, 2019
Patent numberCA 2354688 C
Classification (IPC)G08B21/02

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedFeb 25, 1999Patent grantedAug 19, 2003Term endedFeb 25, 2019

Sources & verification

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