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Expired Canadian patentCanada

Inital bios load for a personal computer system

CA 2020523 C · Owner: Sachsenmaier, Robert · Inventors: Zyvoloski, Kevin Marshall; Dayan, Richard Alan; Palka, Matthew Stephen Jr.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An apparatus and method for loading BIOS stored on a direct access storage device into a personal computer system. The personal computer system comprises a system processor. a system planar, a random access main memory a read only, memory, and at least one direct access storage device. The read only memory includes a first portion of BIOS and data representing the type of system processor and system planar I/O configuration. The first portion of BIOS initializes the system and the direct access storage device to read in a master boot record into the system from the direct access storage device. The master boot record includes a data segment and an executable code segment. The data segment …

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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 July 5, 1990 and granted November 9, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 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.
FiledJuly 5, 1990
GrantedNovember 9, 1993
Term endedJuly 5, 2010
Patent numberCA 2020523 C
Classification (IPC)G06F9/44

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJuly 5, 1990Patent grantedNov 9, 1993Term endedJuly 5, 2010

Sources & verification

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