Method and apparatus for monitoring a movable barrier over a network
CA 2471792 C · Owner: The Chamberlain Group, Inc. · Inventors: Gregori, Eric M.; Peterson, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus comprising a movable barrier operator for controlling the movable barrier; and a network interface electronically connected to the movable barrier operator for connecting the movable barrier to a network; wherein the network board sends a status of the movable barrier over the network to a requesting device.
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 June 21, 2004 and granted March 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2026.
- 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.