Granted Patent
Utility
US 6,469,883 · App. 09/523,848
Method and apparatus for early AC power failure detection
Inventor:
Christoph Zens
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Mar 13, 2000
Inventor
Christoph Zens
Assignee (at issue)
Coactive Networks, Inc.
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.