A floor for an intercommunication bellows between two cars
CA 2497328 C · Owner: Hutchinson · Inventors: De Antonio, Richard; Dalle Molle, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a flexible floor for an intercommunication bellows between two cars which while they are traveling in a straight line move in a longitudinal direction, said floor presenting transverse undulations enabling it to follow the relative displacements of said cars as they are going around bends while also enabling passengers to go between the cars by walking on the top face of the floor said transverse undulations being reinforced by metal blades extending in a transverse direction of the floor and said floor being provided with an elastomer reinforcement interposed between the blades of each pair of said metal blades. The floor is characterized in that said elastomer …
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 February 16, 2005 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.