Granted Patent
Utility
US 4,870,745 · App. 07/137,219
Methods of making silicon-based sensors
Inventor:
Ki Wook Lee
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Dec 23, 1987
Inventor
Ki Wook Lee
Assignee (at issue)
Siemens-Bendix Automotive Electronics L.P.
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.