Elevator service information apparatus
CA 1074468 A · Owner: Hitachi, Ltd. · Inventors: Kaneko, Takashi; Iwasaka, Tatsuo; Shimazaki, Seiichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an elevator system including a plurality of elevator cars adapted to serve a plurality of floors an elevator service information apparatus which predicts the arrival order of the elevator cars arriving at a predetermined floor to give car awaiting passengers information about the arrival order. The arrival prediction may be made for the cars which will arrive at the predetermined floor in a predetermined range of the arrival sequence.
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 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 1997.
- 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.