Overhead door locking operator
CA 2651268 C · Owner: Homerun Holdings Corp. · Inventors: Kyle, Donald Bruce; Mullet, Willis J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for raising and lowering a sectional overhead door between an open position and a closed position including a counterbalance system adapted to be connected to the door an operator motor assembly mounted proximate to the sectional overhead door in the closed position of the sectional overhead door at least a portion of the operator motor assembly movable between a door operating position and a door locking position and a locking assembly (370) having an engaged position to hold the motor assembly in the operating position and a disengaged position to release the motor assembly allowing it to move to the door locking position. The system may be provided with a remote light assembly …
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 April 6, 2001 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 2023.
- 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.