Granted Patent
Utility
US 4,564,084 · App. 06/592,130
Method and apparatus for controlling the temperature of oil in an overhead tank
Inventor:
Bruce G. Heckel
Patented Case
View Patent ↗
Granted: Jan 14, 1986
Filed: Mar 22, 1984
Inventor
Bruce G. Heckel
Assignee (at issue)
Elliott Turbomachinery Co., 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.