Local area network system
CA 2082536 C · Owner: Kamerman, Adriaan · Inventors: Kamerman, Adriaan; Haagh, Johannes P. N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A local area network system (10) includes a host computer (14) connected in a wired LAN (12) with a plurality of bridges (18). The bridges (18) further connect with respective wireless LANs (100 200,... 600) which operate on a common wireless communication channel and contain respective pluralities of terminals (102, 202,... 602). When a download operation is effected for initially starting up a new added terminal (e.g. 102-1), the bridges (18) are adapted to identify download message frames issued by the host computer (14) and retransmit each such frame (400) over the wireless communication channel in non-overlapping time intervals by applying respective different delays. Also each, …
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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 November 10, 1992 and granted August 26, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2014.
- 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.