Granted Patent
Utility
US 5,721,406 · App. 08/609,464
Arc-resistant enclosure employing arc-quenching contact disconnect and method for avoiding arcing in the enclosure
Inventors:
William J. Book, Leo E. Blom
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Mar 1, 1996
Inventors
William J. Book
Leo E. Blom
Assignee (at issue)
ABB Power T&D Company 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.