Navigation apparatus
CA 2222300 A1 · Owner: Matsushita Electric Works, Ltd. · Inventors: Sakamura, Yoshinobu; Okuno, Kaname; Kawai, Kozo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A navigation apparatus has a position measuring device to determine a current position. The device stores a map as image data and displays a map image on a display. Coordinates are assigned to at least one reference location on the map.Either coordinates are assigned for a second reference location or the map image is, aligned with a reference direction to establish a coordinate latitude longitude system for the map image. The current position in then displayed on the map image.
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 November 26, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2019.
- 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.