Roof jack adapter
CA 2325839 A1 · Owner: Sayant, Eric Hugh · Inventors: Sayant, Eric Hugh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roof jack adapter which allows standard roof jacks to be used in conjunction with the adapter for use on ribbed steel roofing. The roof jack adapter is comprised of a rectangular piece of steel flat bar strategically drilled to allow non abrasive elevators to be attached to the steel flat bar. The steel flat bar will also be drilled to allow the standard roof jack to be fastened to the adapter as well as the roof. The piece of steel flat bar will also have a support mechanism designed to allow the standard roof jack to be held securely on the roof jack adapter while the entire apparatus is being installed on the roof. The roof jack adapter with the non abrasive elevators will allow a …
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 November 22, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2022.
- 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.