Granted Patent
Utility
US 5,479,129 · App. 08/158,126
Variable propagation delay digital signal inverter
Inventors:
Francisco J. Fernandez, Thayamkulangara R. Viswanathan
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Nov 24, 1993
Inventors
Francisco J. Fernandez
Thayamkulangara R. Viswanathan
Assignee (at issue)
AT&T CORP.
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.