Granted Patent
Utility
US 5,633,539 · App. 08/379,344
Uninterruptible power supply input power walk-in
Inventor:
Frederick Tassitino
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jan 27, 1995
Inventor
Frederick Tassitino
Assignee (at issue)
Exide Electronics Corporation
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.