Granted Patent
Utility
US 4,914,445 · App. 07/289,248
Microstrip antennas and multiple radiator array antennas
Inventor:
Kevin Shoemaker
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Dec 23, 1988
Inventor
Kevin Shoemaker
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.