Granted Patent
Utility
US 4,707,455 · App. 06/935,372
Method of fabricating a twin tub CMOS device
Inventors:
Joseph C. Tsang, Mario Ghezzo, Robert T. Fuller
Patented Case
View Patent ↗
Granted: Nov 17, 1987
Filed: Nov 26, 1986
Inventors
Joseph C. Tsang
Mario Ghezzo
Robert T. Fuller
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.