Granted Patent
Utility
US 6,121,838 · App. 09/221,673
Precision GaAs low-voltage DC amplifier
Inventors:
William R. Freeman, Philip Shapiro
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: Dec 23, 1998
Inventors
William R. Freeman
Philip Shapiro
Assignee (at issue)
FINISAR CORPORATION
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.