Wall module mainly intended for a wagon body
CA 2266710 A1 · Owner: Daimlerchrysler Rail Systems Gmbh · Inventors: Prockat, Jan; Ristow, Lutz; Volker, Banhardt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a wall module (2) which is mainly intended for railway vehicles and comprises two wall panels (4 5) separated by a , thermal insulation (6). In order to provide a structure which is stable and easy to realise, a wall panel (4) is fitted directly at its outer marginal areas with a single-piece connecting truss (8) supporting at its free end the second wall panel (5). The second wall panel is further supported by a honeycomb filling material (6) affixed to both wall panels (4 5).
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 August 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 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.