Granted Patent
Utility
US 4,558,271 · App. 06/587,233
Power inductive couplers
Inventor:
Douglas Poole
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Mar 7, 1984
Inventor
Douglas Poole
Assignee (at issue)
Marconi Avionics 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.