Granted Patent
Utility
US 4,837,532 · App. 07/112,611
MMIC (monolithic microwave integrated circuit) voltage controlled analog phase shifter
Inventor:
Richard John Lang
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Oct 26, 1987
Inventor
Richard John Lang
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.