System and method for distributed access control with a centralized database
CA 2287092 A1 · Owner: At&T Corp. · Inventors: Kumar, Mahesh M.; Dutta, Partha P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for distributed access control. A packet is received at a firewall, which implements a rule and refers the packet to a credential validating proxy. The proxy retrieves a requester profile from an external database and performs a, credential validating analysis. Based upon the results of the credential validating, analysis, the proxy builds an access rule which is implemented by the , firewall. At the end of the session to which the received packet belongs the access rule is , deleted at the, firewall.
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 October 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2021.
- 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.