Patent Yard Sign in
Expired Canadian patentCanada

Lobed chuck for saw regrinding

CA 1301460 C · Owner: Emter, James · Inventors: Emter, James

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Abstract of the Disclosure A chuck for a circular saw includes a frustoconical plate having a plurality of frusto-conical lobes which snugly engage scallops forming an outer diameter of a mounting aperture in a saw blade adapted to be mounted on a splined arbor. With the saw mounted on the chuck in this manner the concentricity of the outer diameter of the saw and the outer diameter of the mounting aperture is assured as the saw teeth are reground.

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

  • Granted May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.
FiledFebruary 9, 1988
GrantedMay 26, 1992
Term endedMay 26, 2009
Patent numberCA 1301460 C
Classification (IPC)B23D63/08 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 9, 1988Patent grantedMay 26, 1992Term endedMay 26, 2009

Sources & verification

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