Granted Patent
Utility
US 4,586,338 · App. 06/671,262
Heat recovery system including a dual pressure turbine
Inventors:
John R. Barrett, Richard A. Cemenska, John R. Gladden, Mark D. Moeckel, Philip H. Schneider
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Nov 14, 1984
Inventors
John R. Barrett
Richard A. Cemenska
John R. Gladden
Mark D. Moeckel
Philip H. Schneider
Assignee (at issue)
Caterpillar Tractor Co.
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.