Concealed rivet element and setting method for binder and the like
CA 2070227 C · Owner: Cooper, Edward W. · Inventors: Cooper, Edward W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A binder assembly having a backing which, may be the spine or cover, with a prong-carrying plate or plates secured to the backing by means of the prongs. Upstanding rivets secure a support means to the plates. The support means may support a ring binder mechanism, a binder clamp mechanism or other binder mechanism. The support means is secured to the assembly by deforming the heads of the rivets. The rivets and plates may be secured together by assembly and swaging . Spacer elements may be positioned between the plate or plates and the arcuate casing of a ring binder mechanism.
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 2, 1992 and granted November 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2014.
- 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.