Center beam car with depressed cargo-carrying area
CA 2365736 C · Owner: Hubbard, Michael D. · Inventors: Militaru, Daniel V.; Niosi, John N.; Saxton, Gregory J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A center beam railroad freight car with a depressed cargo-carrying floor located on each side of the center beam in an intermediate portion of the car located between respective end portions of the car having higher floors. A bottom plate of the center sill in the intermediate portion of the car is included as a part of the depressed cargo-carrying floor, and crossbearers support floor sheets that extend laterally outward. Side surfaces of the center sill and columns of the center beam are coplanar.
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 December 20, 2001 and granted August 12, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 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.