Appeal No. 1997-1397
Application 08/411,245
We do not agree.
Farr, the examiner’s primary reference, is concerned with
producing a log of traveltime and compression wave velocity as
a function of depth of the well (column 3, lines 4-10). To
this end, seismic waves between oscillators and detectors, one
located in the well bore and the other located at or near the
top of the well, are measured (abstract). Constant frequency
seismic waves produced by the oscillators are detected by the
detector as the distance between the oscillator and the
detector is varied (column 4, lines 3-7). Having a traveltime
log that varies as a function of depth, it is known to
geophysicists how to accurately determine certain useful
information about the subsurface features at the location of
the well (column 5, lines 43-62).
In the present instance, Farr’s basic objective of
producing a log of traveltime and compressive wave velocity as
a function of depth would have dissuaded the ordinarily
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