Granted Patent
Utility
US 6,672,023 · App. 10/067,999
Perimeter weighted foundation for wind turbines and the like
Inventor:
Allan P. Henderson
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Feb 8, 2002
Inventor
Allan P. Henderson
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.