Granted Patent
Utility
US 4,045,690 · App. 05/658,705
High speed differential to TTL converter
Inventor:
Richard K. W. Tam
Patented Case
View Patent ↗
Granted: Aug 30, 1977
Filed: Feb 17, 1976
Inventor
Richard K. W. Tam
Assignee (at issue)
Burroughs, 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.