Safety barrier terminal for motorway guard-rail
CA 2280017 A1 · Owner: Giavotto, Vittorio · Inventors: Giavotto, Vittorio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety terminal (10) comprises a number of longitudinal segments (12a 12b, 12c...) provided with elongated slots and fastened together in such a way as to be capable of sliding longitudinally over one another with consequent , absorption of energy each segment being supported by an upright or post (18a 18b,...) made up of two half-posts connected together by breakable means having a preset breaking strength, the bottom half-post being burried in the ground; the said terminal moreover comprises a cable (30) between the bottom half-post (18') of the end post (18) and the top half-post (18") of the adjacent post, the said cable (30) comprising a breakable plate having a preset breaking …
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 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 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.