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Expired Canadian patentCanada

Method and apparatus for ultrafast microwave tissue fixation

CA 1320539 C · Owner: Raytheon Company · Inventors: Sklenak, John S.; Teich, Wesley W.; Dudley, Kenneth W.

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Abstract From the Canadian patent

A method and apparatus for ultrafast microwave tissue fixation using a single mode resonant waveguide constructed with an aperture near one end. The waveguide is also constructed to provide a uniform E field and maximum power field below the aperture. Tissue is placed into a vial filled with fixation solution. The vial and tissue are then inserted through the aperture into the waveguide. Microwave energy is then applied to the tissue which becomes fixated within a short period of time.

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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 July 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 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 28, 1989
GrantedJuly 20, 1993
Term endedJuly 20, 2010
Patent numberCA 1320539 C
Classification (IPC)G01N1/28 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 28, 1989Patent grantedJuly 20, 1993Term endedJuly 20, 2010

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