Stabilizer for outside sliding plug doors
CA 2136397 C · Owner: Mark Iv Transportation Products Corporation · Inventors: Porter, Troy L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stabilizing arm for use in power operated doors in mass transit vehicles. Doors are of the type where a door panel is moved out of an opening in the car side wall to an opened position outside the car side wall. Stabilization is achieved by moving a rotating arm out of the side wall and capturing the panel in its opened position thereby minimizing possible, hazards in passenger passing through the car opening and damage to the doors either by passengers or others. Operation of the arm is sequenced in the door opening cycle.
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 November 22, 1994 and granted January 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2016.
- 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.