Granted Patent
Utility
US 6,420,968 · App. 09/354,133
Method and communication system for handling alarms using a management network that has a number of management levels
Inventor:
Lucian Hirsch
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Jul 15, 1999
Inventor
Lucian Hirsch
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.