Granted Patent
Utility
US 6,559,797 · App. 09/973,269
Overlapping subarray patch antenna system
Inventor:
Donald C. D. Chang
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Oct 5, 2001
Inventor
Donald C. D. Chang
Assignee (at issue)
HUGHES ELECTRONICS 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.