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Expired Canadian patentCanada

Improvements to modular buildings and materials used in their construction

CA 2406141 C · Owner: Abersham Technologies Limited · Inventors: Parrish, Malcolm

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 modular building comprising: a foundation floor having secured therein a plurality of anchor elements; a plurality of wall-retaining track elements adapted to engage wall panels of the building the track elements being , securable to the foundation floor so as to define the position of at least the load bearing walls of the building; wall panels locatable with respect to the track elements, each panel including at least one channel or duct formed therein parallel to a longitudinal axis thereof and at least one channel or duct formed therein disposed perpendicularly to and laterally of the longitudinal axis; and a plurality of securing members adapted to pass through and locatable …

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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 April 18, 2001 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 18, 2001
GrantedJune 18, 2013
Term endedApril 18, 2021
Patent numberCA 2406141 C
Classification (IPC)E04B1/14 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedApril 18, 2001Patent grantedJune 18, 2013Term endedApril 18, 2021

Sources & verification

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