Patent Yard Sign in
Expired Canadian patentCanada

Document guide mechanism

CA 1263674 C · Owner: Placke, Dale L. · Inventors: Weeks, Donald L.; Placke, Dale L.

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 document guide mechanism having an upstream end, a downstream end, and a feeding line therebetween. A cupping device including a cupping rib provides stiffness to the documents as they are moved along the feeding line from the upstream end towards the downstream end where the documents are stacked. A flexible band having predetermined parameters is used to form a "wave" which travels along the feeding line to move the trailing edges of documents already stacked away from the feeding line to provide an entrance for the leading edge of a document being moved along the feeding line towards the stacked documents.

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 December 5, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 5, 2006.
  • 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 23, 1986
GrantedDecember 5, 1989
Term endedDecember 5, 2006
Patent numberCA 1263674 C
Classification (IPC)B65H31/26 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJuly 23, 1986Patent grantedDec 5, 1989Term endedDec 5, 2006

Sources & verification

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