Granted Patent
Utility
US 4,689,607 · App. 07/007,717
Bidirectional transconductance amplifier
Inventor:
Jeffrey I. Robinson
Patented Case
View Patent ↗
Granted: Aug 25, 1987
Filed: Jan 28, 1987
Inventor
Jeffrey I. Robinson
Assignee (at issue)
General DataComm, 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.