Blind screw anchor
CA 1249938 A · Owner: Newfrey Llc · Inventors: Anquetin, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A blind screw anchor fabricated from one piece of sheet metal that is bent and folded so as to form the component parts of the blind screw anchor. The anchor comprises a first sleeve portion forming a common axis for all component parts of a blind screw anchor. A head piece is integrally connected to the first sleeve by a bent bridge piece and lies in a plane perpendicular to the common axis of the hole provided in the head piece. The second sleeve portion is formed around this central axis and has abutting lengthwise edges that meet so as to complete a cylindrical shape. A plurality of collapsible links are spaced symmetrically along this long axis and integrally connected to the first and …
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 February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 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.