Measuring vehicle
CA 2070791 C · Owner: Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. · Inventors: Theurer, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A measuring vehicle 1 for determining the actual track position in relation to the desired track position has a vehicle frame 2 supported on rail bogies 5 with a frame plane 3 extending parallel to a reference plane formed by the wheel contact points 4. An independently mobile satellite vehicle 22 may be connected for transit to the front end of the vehicle frame 2. The measuring vehicle 1 and the satellite vehicle 22 are designed such that their upper contours 12 are arranged below a boundary plane 13 which encloses an angle .alpha. of 5 to 10° with respect to a reference plane formed by the wheel contact points 4 of the rail bogies 5. The boundary plane 13 here forms with the frame plane …
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 June 9, 1992 and granted December 31, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2014.
- 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.