Remote proxy system and method
CA 2247536 C · Owner: Bell Communications Research, Inc. · Inventors: Wang, Yang-Wei; Kramer, Michael; Hovey, Richard Reid
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interface between a protected computer or computer network (52) and the World Wide Web (WWW) (68). The interface comprises a split proxy system (56 66) that encapsulates TCP/IP transmissions into a script transmission which is not subject to problems in high latency systems thereby greatly improving WWW , access via a wireless modem or other low-bandwidth communications network. The split proxy interface (56, 66) also provides compression encryption and , filtering capabilities and allows receipt of unsolicited transmissions from the service provider for such purposes as automatically updating or configuring WWW access software.
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 March 26, 1996 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2018.
- 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.