Granted Patent
Utility
US 5,172,015 · App. 07/665,782
Integratable transistor circuit for outputting logical levels
Inventor:
Claude Barre
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Mar 7, 1991
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.