Granted Patent
Utility
US 5,844,451 · App. 08/201,623
Circuit element having at least two physically separated coil-layers
Inventor:
Michael Murphy
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Feb 25, 1994
Inventor
Michael Murphy
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.