Granted Patent
Utility
US 4,880,997 · App. 07/233,506
Low noise output buffer circuit
Inventor:
David P. Steele
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Aug 18, 1988
Inventor
David P. Steele
Assignee (at issue)
NCR 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.