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Expired Canadian patentCanada

Radiographic intensifying screens

CA 1061917 A · Owner: Agfa-Gevaert Naamloze Vennootschap · Inventors: Van Landeghem, Willy K.; Suys, Andre R.

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

Fluorescent X-ray image intensifying screen comprising discrete particles of fluorescent material dispersed in a binder layer which screen has an outer layer containing solid particulate material protruding from a coherent film forming organic binder medium and having a static friction coefficient at room temperature not higher than 0.30 on steel.

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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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedSeptember 4, 1979
Term endedSeptember 4, 1996
Patent numberCA 1061917 A
Classification (IPC)C09K11/06 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedSep 4, 1979Term endedSep 4, 1996

Sources & verification

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