Patent Yard Sign in
Expired Canadian patentCanada

Press tool for face collector

CA 1267357 C · Owner: Doncheva, Maiya K. · Inventors: Yonchev, Borislav A.; Venkov, Ivan G.; Doncheva, Maiya K.

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

PRESS TOOL FOR FACE COLLECTOR, (Abstract) A press tool comprising a bottom plate onto which there are mounted a die with radial grooves and a profiled ejector inserted into the die and circularly oriented in it so that the grooves, of the die and the ejector coincide and over them, by means of, guiding columns and guiding sleeves there are mounted a top, plate with a rigid insert attached to its bottom side a rest and, a punch-holder with radial grooves in which there are fastened, prismatic punches and a central core and underneath the punch-, holder there is provided a punch-guide fastened to the guiding, columns by means of guiding sleeves.

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 April 3, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 18, 1986
GrantedApril 3, 1990
Term endedApril 3, 2007
Patent numberCA 1267357 C
Classification (IPC)B21D22/00

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedDec 18, 1986Patent grantedApril 3, 1990Term endedApril 3, 2007

Sources & verification

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