Appeal No. 95-0647
Application No. 08/026,246
glass of the CRTs of Hodges necessarily and inherently meets
the attenuation limitations of claim 1."
Claim 1 on appeal differs from claim 1 in the parent
application by the addition of the phrase “so as to attenuate
all wave lengths of said radiation by about the same amount,
said amount being such as to result in a transmission of the
display window in the range of about 70 to 90 percent” before
the “thereby” clause. The examiner is of the opinion (Final
Rejection, page 4) that:
9. Hodges discloses everything as applicants have
claimed except for the attenuating means.
10. Daiku discloses a glass composition for a
monochromatic CRT which attenuated particular
wavelengths to enhance contrast.
11. It would have been obvious to one having
ordinary skill in the art to use the glass of Daiku
for the CRT’s of Hodges in order to enhance the
contrast. . . . It is the Examiner’s opinion that
there is at least one substance in the glass of
Hodges or Daiku that will attenuate all the visible
wavelengths by the same amount.
12. While applicants may argue that there is no
showing of uniform distribution on the display
window of a substance for attenuating all
wavelengths of visible radiation, it is the
Examiner’s opinion that in the process of making the
glass, all of the substances to make the glass would
be uniformly distributed, otherwise the glass could
have weak areas.
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Last modified: November 3, 2007