Granted Patent
Utility
US 6,320,481 · App. 09/330,679
Compact phase shifter circuit using coupled lines
Inventor:
Arvind Sharma
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Jun 11, 1999
Inventor
Arvind Sharma
Assignee (at issue)
TRW Limited
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.