Appeal No. 2000-1737
Application No. 08/965,180
THE REJECTIONS
Claims 1 and 4 stand rejected under 35 U.S.C. § 103(a) as
unpatentable over the British patent Okada '451 in view of The
Science and Technology article and Marin. According to the
examiner, Okada discloses an elevator safety brake having a
molybdenum alloy friction surface. Okada does not disclose
the specific alloy formed of 99.4 percent molybdenum, 0.5
weight percent titanium, and 0.1 weight percent zirconium.
The examiner further states that The Science and Technology
article discloses an alloy formed of molybdenum plus 0.5
weight percent titanium and .07 weight percent zirconium. The
examiner notes that the .07 weight percent zirconium would
round off to the 0.1 percent zirconium claimed. Finally, the
examiner states that Marin is relied upon to show known
examples of molybdenum, titanium, and zirconium used as
friction materials. Furthermore, the examiner takes official
notice that molybdenum, titanium, and zirconium have known
frictional properties.
Based on these findings, it is the examiner's conclusion
that it would have been obvious to one of ordinary skill in
the art at the time the invention was made to have constructed
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