Granted Patent
Utility
US 5,673,348 · App. 08/541,918
Apparatus for adjustment, attenuating device, coupling device and filtering device
Inventors:
Jochen Ziegler, Rolf Steiner
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Oct 10, 1995
Inventors
Jochen Ziegler
Rolf Steiner
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.