Appeal No. 1997-1497
Application No. 08/059,693
APPEALED SUBJECT MATTER
Claims 1, 8 and 12 are representative of the subject
matter on appeal and read as follows:
1. A dental floss comprised of a plurality of filaments
which are a mixture of polytetrafluoroethylene and non-
polytetrafluoroethylene filaments, said filaments being
twisted together with about 1 to 5 twists per inch.
8. A dental floss comprised of plurality of filaments which
are a mixture of nylon filaments and polytetrafluoroethylene
filaments, said filaments being twisted together with about 1
to 5 twists per inch.
12. A dental floss comprised of a plurality of filaments
which are a mixture of polyester filaments and
polytetrafluoroethylene filaments, said filaments being
twisted together with about 1 to 5 twists per inch.
PRIOR ART
In support of his rejection, the examiner relies on the
following prior art:
Ashton et al. (Ashton) 3,943,949 Mar. 16,
1976
Lorch 4,776,358 Oct. 11,
1988
Blass 4,996,056 Feb. 26,
1991
REJECTION
2
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