Access control/crypto system
CA 2245822 A1 · Owner: Bradley, James V. · Inventors: Bradley, James V.; Kimlinger, Paul J.; Mooney, David M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An access control/crypto system having a smart card reader and an access control program for restricting access to and ensuring trusted security of confidential, proprietary, classified, or other sensitive information contained in files on a computer system. The system requesting information from a user to determine if the user is authorized to access the computer. The access control/crypto system using encryption as a means for securing files that are stored on the hard disk of the computer system transmitted globally , via point-to-point transfer internet transfer, world wide web transfer or transferred via U.S. mail or courier and archived to removable media.
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 February 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2019.
- 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.