Self-attaching fastener
CA 2453150 A1 · Owner: Fabristeel Products, Inc. · Inventors: Parker, John M.; Vrana, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-attaching fastener which may be formed by cold heading having a body including generally arcuate side faces and planar end faces a central tubular , pilot having a planar annular end face a primary bearing surface surrounding the pilot and arcuate flanges extending from the side faces having planar surfaces spaced below the pilot end face wherein one or both faces of the , pilot and the flange portions facing the pilot are inclined. In one embodiment, the arcuate flange portions each comprise arcuate segments preferably having inclined opposed surfaces or the arcuate flanges may be , continuous including an arcuate conical midportion and linear inclined side portions. …
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 July 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2024.
- 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.