Granted Patent
Utility
US 5,227,680 · App. 07/790,606
ECL/TTL translator circuit
Inventors:
Loren Yee, Nguyen X. Sinh
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Nov 8, 1991
Inventors
Loren Yee
Nguyen X. Sinh
Assignee (at issue)
NATIONAL SEMICONDUCTOR 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.