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Expired Canadian patentCanada

High speed duplicator with stapler apparatus and staple loading arrangement

CA 1237252 A · Owner: Xerox Corporation · Inventors: Ferrara, Joseph J.; Bassett, Raymond C.; Hubler, Lawrence C.

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 staple loading arrangement for feeding sticks of staples in a stapler magazine under a constant, uniform force imposed upon a staple follower in the magazine to present individual staples to a stapling position whereat sheets are stapled and including a drive mechanism which will provide this force and a retraction device which when retracting the follower to permit staple loading also conditions the force producing device for another cycle of providing force after staples have been loaded into the magazine.

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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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 25, 1984
GrantedMay 31, 1988
Term endedMay 31, 2005
Patent numberCA 1237252 A
Classification (IPC)B27F7/17 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedOct 25, 1984Patent grantedMay 31, 1988Term endedMay 31, 2005

Sources & verification

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