Patent Yard Sign in
Expired Canadian patentCanada

Folding apparatus and method

CA 1307802 C · Owner: Paper Converting Machine Company · Inventors: Arveson, Bernard A.; Bertolini, Robert

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

Apparatus and method for folding webs which includes a pair of rolls each having tuckers and grippers arranged for tucker-gripper coaction and wherein the tucker is free floating within its mounting advantageously of the order of 1/16" movement in a circumferential direction.

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 September 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 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.
FiledDecember 19, 1988
GrantedSeptember 22, 1992
Term endedSeptember 22, 2009
Patent numberCA 1307802 C
Classification (IPC)B31F1/08 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedDec 19, 1988Patent grantedSep 22, 1992Term endedSep 22, 2009

Sources & verification

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