Method and apparatus for monitoring and controlling real-time information in a building automation system
CA 2236244 C · Owner: Landis & Staefa, Inc. · Inventors: Ramirez, Pete; Han, James K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The building automation control system of the present invention includes a supervisory control station for monitoring and controlling process information (control points) from at least one environmental control device. The supervisory control station is provided with a memory for storing data including a dynamic link library (DLL) containing: first data for displaying a plurality of independently selectable graphic objects and link data, specifying an association between a selected graphic object and the control point. The supervisory control station dynamically displays the received real-time process state information for the associated control point using stored state table data link …
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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 April 27, 1998 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 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
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.