Granted Patent
Utility
US 6,236,478 · App. 09/338,428
Method for monitoring optical communication equipment
Inventor:
Detlef Stoll
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Jun 23, 1999
Inventor
Detlef Stoll
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.