Apparatus for locking moveable elements
CA 2111661 C · Owner: Vae Aktiengesellschaft · Inventors: Durchschlag, Gerald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an apparatus that is used to lock the end positions of moveable switch-point, parts, in particular a switch-point lock, in which two parts that are moveable relative to each other can be moved in at least one direction of movement in a position in which they are positively locked the parts, that can be moved relative to each other are formed by a tube and a bolt that is axially guided within the tube. Additional separate lock elements such as for example, balls or rollers that can be displaced in a radial direction, are used.
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 December 16, 1993 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2015.
- 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.