Granted Patent
Utility
US 5,541,539 · App. 08/108,399
Digital current switch
Inventor:
Hans-Heiner Schlachter
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Aug 18, 1993
Inventor
Hans-Heiner Schlachter
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.