Barrier movement operator communications
CA 2536550 C · Owner: The Chamberlain Group, Inc. · Inventors: Fitzgibbon, James J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A moveable barrier operator actuates an actuator thereby causing a message to be formed. The message indicates that the user at the moveable barrier operator requires assistance. A communication channel is established between the moveable barrier operator and an assistance center. The message is transmitted to the assistance center over the communication channel. An assistance action is performed to provide assistance to the user at the moveable barrier operator.
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 February 15, 2006 and granted February 11, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.