Panic exit door mechanism
CA 2045238 C · Owner: Linder, John Paul · Inventors: Linder, John Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A panic bar mechanism for an exit door having a frame with a stile, upper and lower lock rods vertically sliding in the stile, and a panic bar carried on levers pivotally mounted on the door frame. The mechanism includes a plate mounted in the stile for rotation about a horizontal axis upper and lower, connectors each having a first end attached to the plate on opposing sides of the horizontal axis and each having a second end attached to the upper and lower lock rods respectively, and, a drive pin carried in the lower connector parallel to the horizontal axis, with one or more of the levers having an inner end directly engaging the drive pin for moving the drive pin upward and rotating the …
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, 1991 and granted June 18, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2013.
- 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.