Nut plate fastener
CA 1289786 C · Owner: Macfee, Frederick J. Jr. · Inventors: Macfee, Frederick J. Jr.; Pufpaff, Frederick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A nut plate fastener, particularly adapted to retain a screw and to seal a hole in a panel having foamed-in-place insulation, comprises a sheet metal body member and a doublesided adhesive tape adhered to one face of the metal member. The metal member is a unitary member having a top leaf with a screw impression to receive and retain a screw a "U" shaped, connecting portion, and a bottom leaf having a clearance hole to guide the screw. As a safety feature when there is high, torque on the screw a ring-like raised portion around the, clearance hole may telescope into the screw impression dome to reinforce the dome. Three tabs project from the bottom face of 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
- Granted October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 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.