Path indicating apparatus of moving vehicle
CA 1183928 A · Owner: Tsumura, Toshihiro · Inventors: Tsumura, Toshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A path indicating apparatus for indicating a path of movement for a vehicle is defined as an intersection line of two scanning planes, at least one of which is formed by a scanning signal of a sharply defined directivity. The vehicle is provided with detectors for detecting the signal to detect deviation of the vehicle from the path. The signal is scanned along the path from a fixed position spaced from the path in a direction intersecting the path.
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
- Granted March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
- 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.