Security system and method for computers
CA 2490695 C · Owner: Hearn, Michael Alfred · Inventors: Kabzinski, Richard; Hearn, Michael Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer security device (35) comprising a processor (37) that is independent of the host CPU (13) for controlling access between the host CPU (13) and the storage device (21). A program memory (41) that is independent of the computer memory and the storage device (21) unalterably stores and provides computer programs for operating the processor (37) in a manner so as to control access to the storage device (21). The security device (35) is connected only in line with the data access channel (33) between the host CPU (13) and the storage device (21), and off the main data and control bus (15) of the host CPU (13). All data access by the host CPU (13) to the data storage device …
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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 June 28, 2002 and granted August 12, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.