Granted Patent
Utility
US 4,593,458 · App. 06/667,933
Fabrication of integrated circuit with complementary, dielectrically-isolated, high voltage semiconductor devices
Inventor:
Michael Adler
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Nov 2, 1984
Inventor
Michael Adler
Assignee (at issue)
General Electric Company
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.