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Expired Canadian patentCanada

Buildable device

CA 1301423 C · Owner: Ahlberg & Co. Ab · Inventors: Engstrom, Carl-Otto

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

The present invention relates to a device for receiving essentially planar products, preferably graphic products which includes two or several, frames. Each frame can receive two such products and is formed by four profiled mouldings with a longitudinal first flange and a second flange located at one longitudinal narrow side of the first flange. A product inserted into the frame engages the first flanges of the four profiled mouldings with its one side and abutts the other flanges with its side edges. The frames are sidewardly hingedly interconnected by means of bandshaped hinges , these band-shaped hinges being designed with two ends and provided with a resilient folding or bending at each …

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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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
  • 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 8, 1988
GrantedMay 26, 1992
Term endedMay 26, 2009
Patent numberCA 1301423 C
Classification (IPC)G09F1/10 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedApril 8, 1988Patent grantedMay 26, 1992Term endedMay 26, 2009

Sources & verification

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