Granted Patent
Utility
US 5,907,667 · App. 08/785,895
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Inventor:
Yasuhito Shiraishi
Patented Case
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Granted: May 25, 1999
Filed: Jan 21, 1997
Inventor
Yasuhito Shiraishi
Assignee (at issue)
DAINIPPON SCREEN MFG. 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.