Granted Patent
Utility
US 5,615,732 · App. 08/604,914
Air preheater with semi-modular rotor construction
Inventors:
Mark E. Brophy, William C. Cox, Harlan E. Finnemore, Glenn D. Mattison, Rex R. Snider, Michael W. Wonderling
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Feb 22, 1996
Inventors
Mark E. Brophy
William C. Cox
Harlan E. Finnemore
Glenn D. Mattison
Rex R. Snider
Michael W. Wonderling
Assignee (at issue)
ABB Preheater, 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.