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Expired Canadian patentCanada

Method and apparatus for making forming pins

CA 2089050 C · Owner: Illinois Tool Works Inc. · Inventors: Van Allman, Don T.; Corbin, Amos

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A forming pin having a shank, a head, a point and a pair of like grooves on opposite sides of the shank is made by gripping an elongate wire in a position wherein an end of the wire is exposed, forming a head at the exposed end of the wire while gripped, advancing the wire by a predetermined distance and simultaneously forming the point and forming the grooves. The forming pin thus formed is severed from the remaining wire as the point and the grooves are formed. A pair of dies are used, which are movable so as to pinch the wire therebetween along with mechanisms for closing the dies. The dies are configured similarly to define suitable forming edges.

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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 February 8, 1993 and granted September 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 8, 1993
GrantedSeptember 29, 1998
Term endedFebruary 8, 2013
Patent numberCA 2089050 C
Classification (IPC)B21G3/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 8, 1993Patent grantedSep 29, 1998Term endedFeb 8, 2013

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.