Positive lock rivet
CA 2239765 C · Owner: Kirchen, James T. · Inventors: Nesky, Robert; Kirchen, James T.; Massof, Edward P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A positive lock rivet for joining a plurality of panels is composed of resilient plastic material and has a pin and a body having an axial bore. The pin has a head and a shank the pin, shank having a locking means, a break joint adjacent to the locking means and a break portion adjacent to the break joint and opposite the head. The body has a head and a shank. The body shank has a proximal end, a distal end a collapsible portion and a noncollapsible portion. Integral with the proximal end of the body shank is a retention means and integral with the body shank between the collapsible portion and the body head is a flexible annular skirt positionable between the panels to be joined. The body …
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 June 5, 1998 and granted October 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2020.
- 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.