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Expired Canadian patentCanada

Sandpaper or emery paper supply and cutting container

CA 2028983 C · Owner: Melbye, Roger H. · Inventors: Melbye, Roger 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

The professional or do-it-yourself person i.e. woodworker, or metalworker, while working on wood and/or metal projects has, a handy tool for cutting production sandpaper and emery paper supplied commercially in sheets of approximately nine by eleven inches, and for storing both new sandpaper sheets and still usable used sandpaper sheets or emery sheets keeping them in s, ready supply of flattened sandpaper or emery sheets avoiding any, curling of the new or used sandpaper or emery sheets. This tool ie a container having a top and bottom with a 180 degree opening hinge along one common side, with all the other common sides when closed, contacting one another, to complete the full enclosure …

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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 October 31, 1990 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2012.
  • 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 31, 1990
GrantedJanuary 22, 2002
Term endedOctober 31, 2010
Patent numberCA 2028983 C
Classification (IPC)B65D81/36 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedOct 31, 1990Patent grantedJan 22, 2002Term endedOct 31, 2010

Sources & verification

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