Granted Patent
Utility
US 6,201,449 · App. 09/360,807
Ferromagnetic tuning ring for YIG oscillators
Inventor:
Marinus L. Korber, Jr.
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Jul 24, 1999
Inventor
Marinus L. Korber, Jr.
Assignee (at issue)
Stellex Microwave 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.