The opinion in support of the decision being entered
today was not written for publication in a law journal
and is not binding precedent of the Board.
UNITED STATES PATENT AND TRADEMARK OFFICE
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
Ex parte GEORGE D. CHANDLEY, RAYMOND F. RUFFINI
and NATHAN C. CROWELL
Appeal No. 2006-0594
Application No. 09/740,708
ON BRIEF
Before KIMLIN, PAK and KRATZ, Administrative Patent Judges.
KIMLIN, Administrative Patent Judge.
DECISION ON APPEAL
This is an appeal from the final rejection of claims 10-24.
Claims 10 and 16 are illustrative:
10. A method of increasing the service life of a titanium
aluminide alloy in contact with a molten metallic material
comprising aluminum, comprising including in the titanium
aluminide alloy a rare earth element in an effective amount to
prolong resistance to attack of the alloy by the molten metallic
material and contacting the alloy with the molten metallic
material.
16. A method of prolonging resistance of a titanium aluminide
alloy to a molten metallic material comprising aluminum,
comprising contacting the alloy for a time with the molten
metallic material, removing the alloy from contact with the
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