Control system with communication function and facility control system
CA 2384899 C · Owner: Takusagawa, Masaru · Inventors: Takusagawa, Masaru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system with a communication function for monitoring and/or controlling devices (11, 12,...) through communication with the devices by means of a central device (30), wherein the devices (11 12,...) each have , means for inputting position information representing the positions the , central device (30) has means for collecting position information and device identification information from the devices (11 12,...) and correlating the , position information with the identification information about the devices (11, 12,...).
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 August 17, 2000 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 17, 2022.
- 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.