Granted Patent
Utility
US 4,249,340 · App. 05/967,470
Solar energy collector
Inventor:
Reed A. Maes, Jr.
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Dec 7, 1978
Inventor
Reed A. Maes, Jr.
Assignee (at issue)
Environmental Research Institute
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.