Granted Patent
Utility
US 6,408,194 · App. 09/091,023
Method of detecting operating states of an electrical apparatus and electrical apparatus for detecting apparatus-specific operating states
Inventor:
Andreas Merker
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Jun 5, 1998
Inventor
Andreas Merker
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.