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Expired Canadian patentCanada

Operating system based performance monitoring of programs

CA 2134060 C · Owner: Rashid, Richard F. · Inventors: Bolosky, William J.; Rashid, Richard F.

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

An operating provides a facility within its kernel for monitoring program performance. The facility may monitor user level programs as well as portions of the operating system such as the kernel. The facility counts instructions and/or function calls to provide a useful performance metric to a user of the system. The count is forwarded to a user level monitoring program. The inclusion of the facility within the kernel enhances the speed of performance monitoring and enables the operating system to be directly monitored by the facility.

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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 October 21, 1994 and granted January 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 21, 1994
GrantedJanuary 2, 2001
Term endedOctober 21, 2014
Patent numberCA 2134060 C
Classification (IPC)G06F9/44 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedOct 21, 1994Patent grantedJan 2, 2001Term endedOct 21, 2014

Sources & verification

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