Appeal No. 1998-1416 Page 2
Application No. 08/062,736
BACKGROUND
Appellants' invention relates to a method for forming a
barrier film. An understanding of the invention can be derived
from a reading of claim 18, the sole independent claim on appeal,
which is reproduced below.
18. A method for forming a barrier film having a
high colorless water white transparency comprising the
steps of providing a flexible plastic substrate having
a surface and evaporating a single dielectric material
selected from the group consisting of aluminum oxide,
tin oxide and yttrium oxide to form a barrier layer of
a thickness of 50 to less than 300 Angstroms directly
onto said surface of said plastic substrate for
reducing wate [sic: water] and oxygen permeability.
The sole prior art reference of record relied upon by the
examiner in rejecting the appealed claims is:
Jones 3,442,686 May 06, 1969
Claims 18-22, 25 and 27 stand rejected under 35 U.S.C.
§ 102(b) as being anticipated by Jones.1
OPINION
In reaching our decision in this appeal, we have given
careful consideration to the appellants' specification and
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