Appeal No. 96-3728
Application No. 08/132,078
22. A method for encoding a magnetic stripe comprising a
radiation cross-linkable material which is solid at ambient
temperatures which before cross-linking has a viscosity of
1,200 poise or less at 40EC and high coercivity particles of a
ferromagnetic composition in suspended distribution throughout
said cross-linkable material wherein said particles are
magnetized and substantially all particles are similarly
aligned with respect to their magnetic polarity, comprising
the steps of
exposing only selected regions of the cross-linkable
material to radiation to cross-link the material in said
exposed region,
subjecting the entirety of the material while it is at a
temperature at which the non-radiation exposed regions thereof
are of a viscosity of 1,200 poise or less to a magnetic field
that will rotate the magnetic particles therein by 180E with
respect to the particles in the radiation exposed regions of
the material, and
finally exposing the entirety of said material to
radiation to cross-link the remainder of said material.
The references set forth below are relied upon by the
examiner as evidence of obviousness:
Gutterman 4,239,959 Dec. 16, 1980
Burroughs Corp. (Burroughs), “Magnetic Techniques Study,” U.S.
Department of Commerce NTIS PB-279 086, (1977).
Fayling et al. (Fayling), “Magnetic Recording Properties of
SmCo ,” IEEE Transactions on Magnetics, Vol. Mag. 14, No. 5,
5
(1978).
Claims 2 through 6, 9 through 16, 18, 19, 21, 26 and 27
are rejected under 35 U.S.C. § 103 as being unpatentable over
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