Alternate routing arrangement
CA 1258511 A · Owner: American Telephone And Telegraph Company · Inventors: Seaton, David P.; Olson, Jeffrey J.; Peck, Stephen R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract Improved alternate routing in a packet switching system is provided by inserting alternate routing control information (FIG. 11) into each packet and by storing alternate routing information at each network node (A, B, C). The stored information at each node (A, B, C) includes a list of the available paths extending from the node towards all other nodes together with a list of available algorithms that can be used to select one of the available routes. The alternate routing control information (ARF) in each packet contains postage information specifying the maximum number of nodes through which the packet is to travel. The alternate routing control information (ARF) also includes a …
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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
- Granted August 15, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 15, 2006.
- 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.