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Expired Canadian patentCanada

Mailing cover with reply envelope and response device from integral web

CA 1264706 C · Owner: Kurt H. Volk, Inc. · Inventors: Volk, Kurt E. Jr.

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 composite mailing wrapper suitable for use, with a magazine or catalog having front and rear cover, sheets joined along a longitudinal fold line. A reply envelope is detachably connected to the inside of the cover sheets and the composite wrapper is prepared from an integral web. A method of producing the wrapper from the web by way of folding, bonding and further folding operations is described.

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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 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 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.
FiledMay 30, 1984
GrantedJanuary 23, 1990
Term endedJanuary 23, 2007
Patent numberCA 1264706 C
Classification (IPC)B65D75/54 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedMay 30, 1984Patent grantedJan 23, 1990Term endedJan 23, 2007

Sources & verification

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