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Expired Canadian patentCanada

Imaging system for mamography employing electron trapping materials

CA 2112381 C · Owner: Storti, George M. · Inventors: Soltani, Peter K.; Storti, George M.; Lindmayer, Joseph

CIPO record

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Abstract From the Canadian patent

A high resolution photostimulable storage phosphor screen (12) for breast imaging using X-rays. The phosphor material for storing the image, SrS;Ce,Sm, is appropriately milled to a fine powder and dispersed, using appropriate methods, with high particle packing density, on a supporting substrate. The coated substrate forms a planar imaging screen for mammography. The phosphor screen (12) of the present invention can record high quality digital (as opposed to analog) images for diagnostic breast imaging.

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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

  • Filed June 22, 1992 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2014.
  • 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 22, 1992
GrantedJanuary 28, 2003
Term endedJune 22, 2012
Patent numberCA 2112381 C
Classification (IPC)A61B6/02

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 22, 1992Patent grantedJan 28, 2003Term endedJune 22, 2012

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