Granted Patent
Utility
US 5,124,673 · App. 07/691,898
Level independent automatic cable equalizer
Inventor:
David L. Hershberger
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Apr 26, 1991
Inventor
David L. Hershberger
Assignee (at issue)
GRASS VALLEY LIMITED
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.