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Expired Canadian patentCanada

Kernels, description tables and device drivers

CA 2010591 C · Owner: Iomega Corporation · Inventors: Powell, Steven H.; Condie, Robert F.; Jacob, Steve A.

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

Description tables can be linked to a kernel to form a device driver. The description tables can be device description tables and adapter description tables. The kernel is operating system dependent. The description tables are operating system independent and can be linked to other kernels for other operating systems. A library of kernels for different operating systems can share a common set of kernel requests.

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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 21, 1990 and granted January 26, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2012.
  • 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 21, 1990
GrantedJanuary 26, 1999
Term endedFebruary 21, 2010
Patent numberCA 2010591 C
Classification (IPC)G06F13/10 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 21, 1990Patent grantedJan 26, 1999Term endedFeb 21, 2010

Sources & verification

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