Remountable wood hanger bolt with anti-rotation means
CA 2449100 A1 · Owner: Fitzgerald, Larry · Inventors: Fitzgerald, Larry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is concerned with a remountable hanger bolt for installation in a wood beam or post. The invention consists of wood threads at one, end of the bolt and machine threads on the other end. The bolt comprises a circular, flange that separates the wood threads and the machine threads and extends radially, and perpendicularly from the axis of the bolt. After the bolt is threaded into a wood, beam or post until the flange strikes the beam or post the flange is secured , to the, beam or post by sharpened tangs formed from the flange being driven into the beam, or post or by having fasteners, such as nails or screws passing through holes , formed, in the flange into 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 November 13, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2025.
- 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.