Appeal 2006-2610
Application 10/362,136
compressed gas at a gas density of at least 0.15 to 1.3 kg/l under at
least two unsymmetrical pulsations in such a manner that, per
individual pulsation of a duration of at least 5 s and no more than
60 min, the respective time period to achieve the pressure maximum is
greater than the time period for pressure reduction to the minimum.
The Examiner relies upon the following references as evidence of
obviousness:
Shine US 5,766,637 Jun. 16, 1998
Redding US 5,271,881 Dec. 21, 1993
Murthy US 4,737,384 Apr. 12, 1988
Appellants' claimed invention is directed to a method for
impregnating a carrier matrix with a solid or liquid compound using
compressed gas. The compressed gas is applied under at least two
unsymmetrical pulsations, i.e., the pressure is increased and then abruptly
released at least twice. Each individual pulsation is of a duration of at least
5 seconds and no more than 60 minutes.
Appealed claims 19-52 stand rejected under 35 U.S.C. § 103(a) as
being unpatentable over Shine in view of either Redding or Murthy.
Appellants have not presented arguments for any particular claim on
appeal. Accordingly, all the appealed claims stand or fall together with
claim 19.
We have carefully reviewed each of Appellants' arguments for
patentability. However, we are in complete agreement with the Examiner
that the claimed subject matter would have been obvious to one of ordinary
skill in the art within the meaning of § 103 in view of the applied prior art.
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