Welding of an element of a track unit and a rail section without adding any material
CA 2488023 C · Owner: Mugg, Philippe · Inventors: Mugg, Philippe; Baumert, Serge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a rail line comprising an element (12) of a railroad track unit which is made of a high-alloy steel and in which at least one alloy has a content of at least 5 percent by mass and a rail section (14) made of steel. Said element (12) and rail section (14) are joined together by welding without adding any metal. The rail section (14) is made of low-carbon medium-alloy steel which has a carbon content of less than 0.55 percent by mass.
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 23, 2003 and granted January 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2025.
- 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.