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Expired Canadian patentCanada

Stacking devices

CA 1069552 A · Owner: Siemens Aktiengesellschaft · Inventors: Muller, Gerhard H.; Puritscher, Ernst

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A stacking device for stacking a paper web includes a paper-web support surface arranged for movement up and down a guide bar and an adjustable elevator flap arranged on the support surface. An adjusting mechanism adjusts the flap in dependence upon the position of the support surface relative to the guide bar. Thus the hollow space supporting a paper stack can be adjusted. The adjusting mechanism comprises a camming arm a rod, slidably mounted on the support surface for inward movement therealong and, a flap-actuating arm pivotally mounted on the support surface adjacent an end of the rod. One end of the latter arm is located beneath the flap in a manner such as to raise the flap upon …

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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069552 A
Classification (IPC)B65H45/10

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 8, 1980Term endedJan 8, 1997

Sources & verification

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