Granted Patent
Utility
US 5,638,296 · App. 08/644,587
Intelligent circuit breaker providing synchronous switching and condition monitoring
Inventors:
David Scott Johnson, Aftab H. Khan, Paul H. Stiller, Jeffry R. Meyer
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: May 10, 1996
Inventors
David Scott Johnson
Aftab H. Khan
Paul H. Stiller
Jeffry R. Meyer
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.