Automatic rail fastener applicator
CA 2129577 C · Owner: Eidemanis, Gunars · Inventors: Boczkiewicz, Bruce M.; Eidemanis, Gunars; Straub, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic fastener applicator for securing fasteners to track support members of a railroad track includes a retaining apparatus for receiving and orienting at least one of the fasteners for application to the track support members and a drive apparatus for automatically engaging at least one of the oriented fasteners and for rotating the fastener axially for engagement upon the rail support members.
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 5, 1994 and granted August 31, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2016.
- 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.