Combined guardrail and cable safety system
CA 2583791 C · Owner: Bergendahl, Peter · Inventors: Bergendahl, Peter; Norton, Charles R.; Gripne, Don J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combined guardrail and cable safety system is disclosed. In one aspect the , present invention teaches a safety barrier including a plurality of cable posts spaced from each other and disposed adjacent to a roadway. At least two cables are releasably engaged with and supported by the cable posts. The cable posts and the two cables cooperate with each other to prevent a vehicle from leaving the roadway. A plurality of guardrail posts are spaced from each other and disposed adjacent to the roadway longitudinally spaced from the plurality of cable post. A guardrail beam is fixedly coupled to the plurality of guardrail posts and including slots. The two cables extend from the cable …
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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 October 4, 2005 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.