Rail fastening means
CA 1262889 C · Owner: Omark Australia Ltd. · Inventors: Geddes, Norman Reith; Clark, Jack
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combination of a rail base plate and fastener clips fastening the foot of a rail to the base plate. The base plate has a pair of spaced parallel rail foot edge engaging surfaces facing each other and a lower surface. A pair of identical spring steel U-shaped fastener clips each have an upper limb, a lower limb, and a heel joining the limbs. The upper surface of the lower limb has an upwardly facing concave surface. A pair of clip lock protuberances stand up from the base plate. Aperture surfaces define apertures outboard of the protuberances. The under surface of each protuberance comprises a downwardly projecting convex surface wholly above the said base plate lower surface by a distance …
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
- Granted November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
- 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.