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Expired Canadian patentCanada

End protector for a reinforcing bar

CA 1302116 C · Owner: Lunn, John E. · Inventors: Lunn, John E.

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 end protector for a reinforcing bar has a one piece support and a cushion. The support has a cylindrically-shaped receptacle with two arms extending outwardly therefrom and two longitudinal slots that are generally opposed to one another along either side of the receptacle. The arms hold the cushion in position on a side of said receptacle opposite to the reinforcing bar. When an external force is exerted on the cushion, at least part of the force is transferred through said arms to said receptacle, thereby causing the slots to narrow and the receptacle to further tighten onto said rebar. When the external force is removed the support, returns to its initial position. Thus when no, …

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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

  • Granted June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 28, 1988
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302116 C
Classification (IPC)B65D59/06 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 28, 1988Patent grantedJune 2, 1992Term endedJune 2, 2009

Sources & verification

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