Granted Patent
Utility
US 5,331,229 · App. 07/869,472
CMOS/ECL signal level converter
Inventor:
Claude Barre
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Apr 15, 1992
Inventor
Claude Barre
Assignee (at issue)
Siemens Aktiengesellschaft
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.