Ladder safety hoop system
CA 2350800 A1 · Owner: Brown, Richard T. · Inventors: Brown, Richard T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety enclosure for a human worker positioned on a ladder comprising a , bracket, connectable to first and second preselected rungs of a ladder having a , longitudinally, extending central portion preselected in length to span at least two adjacent rungs of the, ladder. A continuous open hoop-like member having a preselected opening sized so as to, freely encompass the midsection of a human worker is connected to the bracket means, adjacent the first preselected rung. The hoop-like member has a pair of side portions, extending normal to the bracket and a back portion connecting the two side portions. Auxiliary hoop means connects the outboard ends of the side portions to the …
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 June 14, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2023.
- 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.