Communication based vehicle positioning reference system
CA 2279528 C · Owner: Abb Daimler-Benz Transportation (North America) Inc. · Inventors: Walsh, Robert E.; Greco, Joseph A. Ii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communication based vehicle positioning reference system that includes a vehicle path. The vehicle path is divided into regions wherein the regions , contain a portion of the vehicle path. Each portion of the vehicle path contained within a respective region is defined by one or more segments. A position of a vehicle on the vehicle path is identified by a local coordinate system Sxyz, where S is a vehicle identifier x is a specific region, y is a , specific segment contained within the region and z is the position of the vehicle within the specific segment. The vehicle path can be represented on a map. Each of the segments can be identified by a character string that includes the …
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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 February 2, 1998 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 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
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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.