Granted Patent
Utility
US 4,833,423 · App. 07/075,084
Apparatus and method for a wide-band direct-coupled transistor amplifier
Inventor:
John J. Molloy
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Jul 20, 1987
Inventor
John J. Molloy
Assignee (at issue)
APEX MICROTECHNOLOGY, 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.