Granted Patent
Utility
US 4,535,756 · App. 06/565,131
Solar collectors
Inventors:
James W. Rinehart, Frank W. Gilleland, Byron W. Engen
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Dec 27, 1983
Inventors
James W. Rinehart
Frank W. Gilleland
Byron W. Engen
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.