Granted Patent
Utility
US 6,448,867 · App. 09/625,281
High frequency voltage variable attenuator
Inventor:
Michael G. Kossor
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Jul 25, 2000
Inventor
Michael G. Kossor
Assignee (at issue)
LUCENT TECHNOLOGIES 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.