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Expired Canadian patentCanada

Paper buffering material for pre-packing electronic products

CA 2180400 C · Owner: Son, Young Ho · Inventors: Son, Young Ho

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 paper buffering material for pre-packing an electronic product which can replace the conventional foamed polystyrene resin. The buffering material includes a paper panel of predetermined width and shape, which has a plurality of grooves in predetermined portions thereof to fix and support the electronic product and a plurality of ribs on both surfaces of the panel to buffer external impacts.

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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 July 3, 1996 and granted February 22, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 3, 1996
GrantedFebruary 22, 2000
Term endedJuly 3, 2016
Patent numberCA 2180400 C
Classification (IPC)B65D81/13

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 3, 1996Patent grantedFeb 22, 2000Term endedJuly 3, 2016

Sources & verification

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