Riveting fastener with improved torque resistance
CA 2022715 C · Owner: Multifastener Corporation · Inventors: Ladouceur, Harold A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A riveting fastener and panel assembly having improved torque resistance. The riveting fastener includes a tubular riveting barrel portion having a free end and a body portion having a diameter greater than the barrel portion. The tubular barrel portion is received through an opening in a panel and preferably deformed radially outwardly and, the body portion is driven into the panel adjacent the panel opening deforming the panel. The improvement comprises a plurality of spaced cavities in the body portion preferably having an arcuate inside surface opening radially outwardly with the opening to the cavities having an area greater than the inside surface area of the cavity. The panel is …
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 August 3, 1990 and granted October 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 3, 2012.
- 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.