Granted Patent
Utility
US 4,154,219 · App. 05/776,653
Prismatic solar reflector apparatus and method of solar tracking
Inventors:
Youdhishthir P. Gupta, Mark J. O'Neill
Patented Case
View Patent ↗
Granted: May 15, 1979
Filed: Mar 11, 1977
Inventors
Youdhishthir P. Gupta
Mark J. O'Neill
Assignee (at issue)
E-Systems, Inc.
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.