Device for locking end positions of mobile switch parts
CA 2291102 C · Owner: Hortler, Josef · Inventors: Achleitner, Herbert; Hortler, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device for locking the end positions of movable railway switch parts in particular a, switch lock, in which two parts capable of being axially displaced relative to each other are displaceable into a position coupled to each other in a positive and forcetransmitting manner in at least one moving direction. The relatively displaceable parts are formed by a tube (19 40), and a rod (13) guided within the tube (19 40) and are, arranged at least partially in a stationary external tube (8) wherein locking elements comprised of balls (17 18, 39), cooperate with the axially displaceable parts and the external tube (8) and are displaceable in the radial direction into a …
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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 27, 1998 and granted October 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 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.