Granted Patent
Utility
US 4,295,621 · App. 06/131,517
Solar tracking apparatus
Inventor:
Bohdan W. Siryj
Patented Case
View Patent ↗
Granted: Oct 20, 1981
Filed: Mar 18, 1980
Inventor
Bohdan W. Siryj
Assignee (at issue)
RCA Corporation
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.