Granted Patent
Utility
US 5,291,140 · App. 08/109,844
Mixed domain spectrum measurement method
Inventor:
Douglas R. Wagner
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Aug 19, 1993
Inventor
Douglas R. Wagner
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.