Granted Patent
Utility
US 5,899,199 · App. 08/913,498
Solar energy collector system
Inventor:
David R. Mills
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Sep 24, 1997
Inventor
David R. Mills
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.