Appeal No. 2003-0740
Application No. 09/099,188
According to appellants, the invention is directed to a method
of making a multi-chamber container, which is used to store two
products that require separation prior to use, where the chambers
are separated by a peelable seal (Brief, page 4). A more complete
understanding of the invention may be gleaned from illustrative
independent claim 13, which is reproduced below:
13. A method for making a multi-chamber container comprising
the steps of:
providing a web of plastic film having a first layer and a
second layer adjacent said first layer, said first layer including
an alloy of at least two materials, a first one of said materials
being a SEBS copolymer having a first melting point temperature and
a second one of said materials being an ethylene propylene
copolymer having a second melting point temperature, the second
melting point temperature being higher than the first melting point
temperature, said second layer including ethylene vinyl acetate;
sealing opposing edges of the web of film to create an
interior defined, at least in part, by the first layer; and
creating an inner peel seal defining at least two chambers.
The examiner relies upon the following references as evidence
of obviousness:
Peterson 4,268,338 May 19, 1981
Carveth et al. (Carveth) 4,770,295 Sep. 13, 1988
Smith et al. (Smith) 5,176,634 Jan. 05, 1993
Fabisiewicz et al. (Fabisiewicz) 5,209,347 May 11, 1993
Mueller 5,486,387 Jan. 23, 1996
Woo et al. (Woo) 5,645,904 Jul. 08, 1997
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