Granted Patent
Utility
US 4,663,586 · App. 06/729,507
Device with automatic compensation of an ac attenuator
Inventors:
Ronald L. Swerlein, Lawrence A. DesJardin, Scott Stever
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: May 2, 1985
Inventors
Ronald L. Swerlein
Lawrence A. DesJardin
Scott Stever
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.