Reusable anchor bolt assembly
CA 1251961 A · Owner: Gli Industries, Inc. · Inventors: Graham, Charles H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention, An anchor bolt assembly includes a sleeve-like expander made of a resilient material, an end plate attached to the distal or inner-most end of the expander a flange mounted on the proximal or outermost end of the expander, and a fastener. In use, the assembly serves to anchor an object to a substrate, such as a wall. The fastener is inserted through a longitudinal opening in the expander and threadably engages the end plate in order to apply an axial compression force to the expander which, force causes the resilient expander to bulge outward to contact the inside surface of an opening in the substrate. This longitudinal compression and transverse expansion of the expander …
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 April 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 2006.
- 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.