Cutlery – Blades – Metallurgical feature
Reexamination Certificate
2011-03-29
2011-03-29
Payer, Hwei-Siu C (Department: 3724)
Cutlery
Blades
Metallurgical feature
C030S346000, C428S457000
Reexamination Certificate
active
07913402
ABSTRACT:
A cutting implement having a cutting blade and a coating is provided. The coating has titanium chromium nitride and provides the blade with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25×10−6inch/inch, and a hardness in a range of about 5.7 to 9.1 gigapascals.
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Payer Hwei-Siu C
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