Metropolitan wide area network
CA 2296352 C · Owner: Winstar Communications, Inc. · Inventors: Zendle, Allan M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wide area communication network includes at least two hub sites which are interconnected by a communication backbone. Each hub site provides millimeter microwave wireless coverage in at least one sector. At least two remote sites reside in each sector and are coupled to a corresponding hub site via a point to multi point broadband millimeter microwave wireless system. The network preferably includes at least one service node which is accessible to the remote sites via the hub sites and backbone.
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 July 21, 1998 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2020.
- 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.