Granted Patent
Utility
US 4,987,382 · App. 07/421,240
Microwave integrated circuit having a level shift circuit
Inventor:
Yasuo Saitoh
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Oct 13, 1989
Inventor
Yasuo Saitoh
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.