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Expired Canadian patentCanada

Vertical-walled edge-connected panelized connectable rhombic triacontahedral buildings

CA 1280573 C · Owner: Golden, Frederick L. · Inventors: Golden, Frederick L.

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 building system or combination of building structures which comprise panelized edge connected elongated rhombic triacontahedral structures for the roofs and walls the walls being, elongated vertical panels. The structures include hollow extruded connectors for joining the panels together and in some instances for joining the building structures together as a single unit. Externally the connectors are relieved to provide a flush surface appearance with the panels. The hollow connectors create strong lightweight structures with integral conduits for utilities. Tie downs to retain the structures in place can be threaded through the hollow connectors. One important optional feature is a …

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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

  • Granted February 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2008.
  • 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 4, 1986
GrantedFebruary 26, 1991
Term endedFebruary 26, 2008
Patent numberCA 1280573 C
Classification (IPC)E04B1/32

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJuly 4, 1986Patent grantedFeb 26, 1991Term endedFeb 26, 2008

Sources & verification

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