Support for safety barrier
CA 2394255 A1 · Owner: Watson, Daryl Roy · Inventors: Watson, Daryl Roy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A temporary safety barrier is used to protect workers from accidentally falling through, a stairwell or other opening in a structure in the course of construction. The barrier is, composed of a post having a stop and two or more connectors for attachment of hand rails, to the post. A bracket is nailed or screwed to a stringer and a joist where the two are, interconnected. The bracket together with the joist and stringer define a space for removable, receipt of the post. When the post is within the space the stop contacts the , structure and, prevents the post from falling out of the space.
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 July 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2024.
- 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.