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Expired Canadian patentCanada

Improvements in record pads

CA 2055649 C · Owner: Moore Business Forms, Inc. · Inventors: Haskayne, Jo Ann; Perriman, Victor H.

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 record pad comprising a plurality of sheet sets each set comprising at least one removable top copy sheet and an underlying record copy sheet in which the top copy sheet lies in close juxtaposition to the underlying record copy sheet and bears a strip of repositionable adhesive adjacent an edge of the record copy sheet and in which one edge of record copy sheet extends beyond the edge of the top copy sheet to provide a margin which margin serves to be secured to other margin of the pad for record purposes.

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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

  • Filed November 15, 1991 and granted March 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 15, 1991
GrantedMarch 6, 2001
Term endedNovember 15, 2011
Patent numberCA 2055649 C
Classification (IPC)B42D5/00 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 15, 1991Patent grantedMarch 6, 2001Term endedNov 15, 2011

Sources & verification

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