Granted Patent
Utility
US 6,512,305 · App. 09/595,101
Method and apparatus having a turbine working in different modes for providing an uninterruptible supply of electric power to a critical load
Inventors:
Joseph F. Pinkerton, David B. Clifton
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Jun 16, 2000
Inventors
Joseph F. Pinkerton
David B. Clifton
Assignee (at issue)
Active Power, 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.