Granted Patent
Utility
US 6,726,439 · App. 10/039,825
Retractable rotor blades for power generating wind and ocean current turbines and means for operating below set rotor torque limits
Inventors:
Amir S. Mikhail, Geoffrey F. Deane
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Oct 25, 2001
Inventors
Amir S. Mikhail
Geoffrey F. Deane
Assignee (at issue)
Clipper Windpower Technology, 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.