Granted Patent
Utility
US 4,912,347 · App. 07/089,284
CMOS to ECL output buffer
Inventor:
Bernard L. Morris
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Aug 25, 1987
Inventor
Bernard L. Morris
Assignee (at issue)
American Telephone and Telegraph Company, AT&T Bell Laboratories
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.