Granted Patent
Utility
US 5,601,075 · App. 08/506,014
Solar energy collecting system
Inventor:
Herman Lai
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Jul 24, 1995
Inventor
Herman Lai
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.