Self-attaching fasteners, strips of fasteners, methods of forming and feeding the same
CA 2456537 A1 · Owner: Whitesell International Corporation · Inventors: Ladouceur, Harold A.; Vrana, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods of forming and feeding self-attaching fasteners are disclosed wherein the strip includes a plurality of spaced abutment surfaces preferably , notches, which may be used both during the manufacturing process and feeding of a strip of fasteners to an installation head. Where the fasteners are interconnected in a strip, by frangible wires the wires are located in the , bottom wall of the panel receiving grooves in the flange portions on opposed sides of the projecting pilot portion. A self-attaching fastener having deformable inclined lip portions which extend upwardly and toward the pilot portion from the flange portions which are deformed during installation to provide further …
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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.