Safety line shock absorber
CA 2133358 C · Owner: Research And Trading Corporation · Inventors: Sastry, Ravi S.; Ellis, J. Nigel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shock absorber for fall protection systems is described. It is comprised of elongated first and second side-by-side inelastic elements having proximal and distal ends; means for attaching the distal end of said first inelastic element to the proximal end of said second inelastic element; a plurality of paired opposing first and second openings extending along the length of said first and second inelastic elements; and a, plurality of energy absorbing cables extending, respectively, through said plurality of opposing pairs of openings said energy, absorbing cables having at each end thereof means to prevent withdrawal of said energy absorbing cables through the openings and said energy …
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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 September 30, 1994 and granted October 27, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2016.
- 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.