Granted Patent
Utility
US 5,523,673 · App. 08/207,014
Electrically controllable inductor
Inventors:
David Ratliff, Peter H. Burgher, John Boomer
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Mar 4, 1994
Inventors
David Ratliff
Peter H. Burgher
John Boomer
Assignee (at issue)
Marelco Power Systems, Inc.
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.