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Expired Canadian patentCanada

Concealable wallboard fastener and walls and partitions assembled with the aid thereof

CA 1195077 A · Owner: Weinar, Roger N. · Inventors: Weinar, Roger N.

CIPO record

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Abstract From the Canadian patent

CONCEALABLE WALLBOARD FASTENER AND WALLS AND PARTITIONS ASSEMBLED WITH THE AID THEREOF ABSTRACT OF THE DISCLOSURE:, Walls and partitions are constructed by securing wallboard panels to a substructure, such as one of conventional metal or other framing members, by a series of concealed fastening clips, some of which are affixed to the framing members by nail or screw fasteners and others of which while not held, to the framing members help hold adjacent wallboard panels, together and in alignment with each other at the panel sides which are usually in abutting relationship. The fastening clips are made from sheet or strip material and include a base portion having a substructure contacting …

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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 October 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1983
GrantedOctober 15, 1985
Term endedOctober 15, 2002
Patent numberCA 1195077 A
Classification (IPC)E04F13/24

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedMarch 11, 1983Patent grantedOct 15, 1985Term endedOct 15, 2002

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