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Expired Canadian patentCanada

Building panels

CA 1315948 C · Owner: Neovators Inc. · Inventors: Hassan, Melvin

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 drywall sheet is marked on the reverse side thereof with a plurality of bands; the bands are of two different types according to two modular dimensions of the sheet to form two grids which aid in positioning, drywall studs prior to the sheet being secured thereto. The obverse face is marked with two complementary marked grids to assist in positioning screws or other securing means. Preferably the obverse face has screws positioning intervals marked around the bounding edge thereof.

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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 April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 19, 1989
GrantedApril 13, 1993
Term endedApril 13, 2010
Patent numberCA 1315948 C
Classification (IPC)E04B1/00

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 19, 1989Patent grantedApril 13, 1993Term endedApril 13, 2010

Sources & verification

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