Initiating connections through firewalls and network address translators
CA 2471283 A1 · Owner: Moyer, Stanley L. · Inventors: Huitema, Christian; Marples, David; Moyer, Stanley L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Access to private devices (220) that are separated from the public network by firewalls (222) and network address translators (NATs) is provided without reconfiguring the firewalls and NATs. A private device wishing to provide access to external devices (240) establishes a virtual private pipe (226) to a secure hub (200), which includes functionality to terminate virtual pipes and to switch communications between these pipes and the public network (112). The secure hub assigns a secondary IP address to the private device/pipe and thereby provides the private device with a network appearance that is now beyond the firewall/NAT. External devices access the private device by …
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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 January 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2025.
- 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.