Patent Yard Sign in
Expired Canadian patentCanada

Apparatus and method for loading bios from a diskette in a personal computer system

CA 2020522 C · Owner: Palka, Matthew Stephen Jr. · Inventors: Palka, Matthew Stephen Jr.; Zyvoloski, Kevin Marhsall; Kinnear, Scott Gerard

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

An apparatus and method for loading BIOS from a diskette drive into a personal computer system normally connected to a hardfile, such as a fixed disk. The personal computer system further includes a system processor a, random access main memory, a read only memory and a switching means. The switching means generates a signal to indicate a mode for whether BIOS loads from either diskette or disk. In a priority mode, BIOS loads immediately from diskette. In a recovery mode BIOS, loads from diskette after testing the disk subsystem. 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 …

Read the whole patent

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 2020522 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.