Energy absorbing guard rail terminal
CA 1292905 C · Owner: Cortell, Dominick J. · Inventors: Dimargio, Nick A.; Syak, Charles W.; Cortell, Dominick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An energy absorbing guard rail terminal has pairs of spaced parallel rails with overlapping ends positioned on breakaway posts with mounting bolts securing one of each pair of rails to said posts, spacer rods between said parallel rails and a box beam on some of said posts facing said spacer rods multiple spaced openings in each of said rails aligned longitudinally for registration and splace bolts in said openings joining said overlapping ends of said rails said splice bolts, forming means for telescopic resistance between said overlapping rail ends.
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 December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
- 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.