Granted Patent
Utility
US 6,006,064 · App. 09/157,488
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Inventor:
Takayuki Hashimoto
Patented Case
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Granted: Dec 21, 1999
Filed: Sep 21, 1998
Inventor
Takayuki Hashimoto
Assignee (at issue)
Katoh Electrical Machinery Co., Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.