Patent Yard Sign in
Expired Canadian patentCanada

Hand tools convertible for chopping and splitting

CA 1320674 C · Owner: Burke, Edward R. · Inventors: Burke, Edward R.

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

A hand tool convertible for chopping and splitting comprises a head including a blade end with a cutting edge, an eye hole extending in an axial direction through the head for receiving a handle, a pair of opposing major side faces extending from the cutting edge around and past the eye hole, and a recess extending into at least one of the pair of side faces, and a wedge element removably received in the recess. In the preferred embodiments the wedge element is asymmetrically positioned with respect to any other wedge elements that may be attached to the head and is generally non-movably mounted to the head by a stud portion received in a recess in the head.

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 July 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 27, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 21, 1989
GrantedJuly 27, 1993
Term endedJuly 27, 2010
Patent numberCA 1320674 C
Classification (IPC)B26B3/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJuly 21, 1989Patent grantedJuly 27, 1993Term endedJuly 27, 2010

Sources & verification

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