Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2007-05-08
2007-05-08
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
Reexamination Certificate
active
11014366
ABSTRACT:
Methods are provided for determining the presence of cracks in razor blades during manufacturing. The methods may include, for example, providing a plurality of razor blades in a stack, inducing a current in the stack, and measuring a parameter that is related to the current and indicative of the presence or absence of cracks in the razor blades.
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Depuydt Joseph A.
Hamelin Michel
Masek William
Fish & Richardson P.C.
Porta David
Sung Christine
The Gillette Company
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