Granted Patent
Utility
US 5,500,894 · App. 08/161,740
Telephone line interface with AC and DC transconductance loops
Inventor:
Russell Hershbarger
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Dec 3, 1993
Inventor
Russell Hershbarger
Assignee (at issue)
SILICONSYSTEMS, 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.