Granted Patent
Utility
US 5,576,943 · App. 08/445,690
Soft switched three phase inverter with staggered resonant recovery system
Inventor:
Alexander S. Keir
Patented Case
View Patent ↗
Granted: Nov 19, 1996
Filed: May 22, 1995
Inventor
Alexander S. Keir
Assignees (at issue)
Kaman Electromagnetics Corp.
Newport News Shipbuilding and Dry Dock Company
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.