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Expired Canadian patentCanada

Portable room divider

CA 2108454 C · Owner: Maas, Paul · Inventors: Maas, Paul

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 portable room divider (10) includes a plurality of folded wall panels (11) positioned between a pair of end members (12a, 12b) with wheels (17). The end members (12a 12b) are provided with clasps (20) that normally retain the panels in a folded condition and cooperate with the end members (12a 12b) to form a can for the panels. The clasps (20) can be disengaged to permit the panels (11) to be unfolded to form a wall that is anchored at each end by an end member (12a 12b).

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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 January 22, 1993 and granted July 28, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 22, 1993
GrantedJuly 28, 1998
Term endedJanuary 22, 2013
Patent numberCA 2108454 C
Classification (IPC)E04B2/74 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJan 22, 1993Patent grantedJuly 28, 1998Term endedJan 22, 2013

Sources & verification

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