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Expired Canadian patentCanada

Ratcheting tool

CA 1247887 A · Owner: Easco Hand Tools · Inventors: Bodnar, Michael L.; Gagnon, Richard; Orszulak, Stanley

CIPO record

Overview

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

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Abstract From the Canadian patent

A ratcheting tool has a handle mounted on a ratchet housing. The ratchet housing has a blind axial bore formed therein. A driven shank has a rearward portion nested partially in the bore, and a ratchet is formed externally on the rearward portion of the shank. A cam is seated in the bore rearwardly of the ratchet, and is pivotable substantially about the axis of the bore. The cam has a bore formed therein and a thrust, ball is seated in the cam bore axially between the bottom of the blind axial bore in the ratchet housing and the rearward portion of the shank, thereby accommodating axial thrust loads on the tool. A selector pin is carried by the cam and extends radially therefrom through an …

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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 January 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 6, 1985
GrantedJanuary 3, 1989
Term endedJanuary 3, 2006
Patent numberCA 1247887 A
Classification (IPC)B25B13/46

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedMarch 6, 1985Patent grantedJan 3, 1989Term endedJan 3, 2006

Sources & verification

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