Granted Patent
Utility
US 5,689,197 · App. 08/569,691
BIMOS-type current switch apparatus
Inventor:
Mitsutoshi Sugawara
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Dec 8, 1995
Inventor
Mitsutoshi Sugawara
Assignee (at issue)
NEC CORPORATION
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.