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Expired Canadian patentCanada

Base curve bender

CA 2178194 C · Owner: Byron, David L. · Inventors: Byron, David L.; Flemmer, Rory L.

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

An eyewinder system (10) has stations (100-108) for straightening bending, measuring and transporting a wire (11) to form an eye wire (109). A controller (120) controls each station. Using information from tension and length measuring stations (104 105) the controler, (120) can accurately operate the second bending station (107). The eyewire (109) is inspected for accurate bends by an inspection system (140) that compares the bends in the eyewire (109) to predetermined radii of curvature. A base curve bending station (801) has a shuttle (810) and a turntable (830). A wire (820) passing through the shuttle (810) is bent and the head of the wire is held in one direction while the turntable …

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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 December 27, 1994 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 27, 1994
GrantedFebruary 1, 2000
Term endedDecember 27, 2014
Patent numberCA 2178194 C
Classification (IPC)B21F45/00 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedDec 27, 1994Patent grantedFeb 1, 2000Term endedDec 27, 2014

Sources & verification

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