Improvements in safety barriers for roads
CA 2050674 C · Owner: Garcia Ballesteros, Angel · Inventors: Garcia Ballesteros, Angel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The aim of the invention is to supply a safety barrier which acts as a dividing and/or protecting wall between lanes of opposite directions in roads. The barrier consists of a series of light weight modules filled of a, conventional material as ballast to give them stability and resistance. The modules are noticeably rectangular prismatic bodies with top apertures which act as loading nozzles for the filling material, and with lower transversal canals for the circulation of water. One type of module is male and the other female and to form the, barrier they are placed alternatively the ones on the others on the wearing course of the road. The modules can be dismantled to leave an open way …
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 September 4, 1991 and granted March 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 2013.
- 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.