Rail lubricator
CA 2233400 C · Owner: Portec Rail Products, Inc. · Inventors: Lounsberry, Peter C.; Urmson, William T. Jr.; Craig, Jeffrey P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for lubricating a track or a rail that is adapted to be mounted to a wheeled vehicle. The device includes a frame member adapted to be mounted to the vehicle and an arm pivotally attached to the frame member. A roller which is adapted to ride on the rail, mounts to the arm and receives a guide. A lubricating nozzle attaches to the guide.
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 March 27, 1998 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2020.
- 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.