Movable barrier operator with multiple lighting schemes and method
CA 2453670 C · Owner: Laird, Edward T. · Inventors: Laird, Edward T.; Fitzgibbon, James J.; Brad, Dana M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A movable barrier operator (10) can control a plurality of light sources (12) via corresponding light drivers (11) to effect various lighting schemes in response to facilitating various operating modes and/or operational states of the operator. Preferably such lighting schemes are both selectively assignable by a user to specific modes/states and themselves uniquely definable by a user.
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 May 8, 2003 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2025.
- 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.