Coach body of railway vehicle
CA 2253308 C · Owner: Duewag Aktiengesellschaft · Inventors: Schroder, Karl-Josef; Koeppe, Matthias; Muhlhahn, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The coach body of a railway vehicle consists essentially of horizontal and vertical panels (1, 2) with the horizontal panels (1) which form a floor as well as a roof and the vertical panels in particular the side panels , providing apertures (2a) which allow the installation of at least one window and one access door. The horizontal and vertical panels (1 2) are composed by , fibre reinforced split modules (3) with the joint running at right angle to the longitudinal axis. Two of these modules (3) which are complementary and juxtaposed are each time connected by a load-transmitting joint via their horizontal panels (1) in the centre of the vehicle (4) thus forming a longitudinal …
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 May 3, 1997 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2019.
- 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.