Patent Yard Sign in
Expired Canadian patentCanada

Bumper for the percussion of a driving tool

CA 1318692 C · Owner: Schafer, Manfred · Inventors: Schafer, Manfred; Schumann, Kurt; Tacke, Horst

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

The invention relates to an annular cushioning buffer of elastic material for fastener-driving tools having a central passage as, well as axial or essentially axial holes preferably arranged on a circle of holes, and preferably having a circular cross section in its surface region. To extend service life it is provided that, at least one slot always runs from at least one or a plurality of the holes in the direction of the inner face or the outer face of the surface.

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 June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 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.
FiledSeptember 12, 1989
GrantedJune 1, 1993
Term endedJune 1, 2010
Patent numberCA 1318692 C
Classification (IPC)B25C1/04

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 12, 1989Patent grantedJune 1, 1993Term endedJune 1, 2010

Sources & verification

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