Ladder, folding, 3-legged
CA 1291463 C · Owner: Margolies, Paul R. · Inventors: Margolies, Paul R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to tripodal support structures and more particularly to a three-legged folding step-ladder having outrigger-type support extensions on the two front support legs, a rear support member having a single ground contact point and independently extendable and retractable safety hand rails. The support legs of the instant invention contact the ground at points spaced apart from one another to form an equilateral triangle when viewed from above.
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
- Granted October 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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.