Granted Patent
Utility
US 4,548,040 · App. 06/609,902
Method and apparatus for determining when to initiate cleaning of turbocharger turbine blades
Inventors:
Robert A. Miller, Edward J. Condrac
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: May 11, 1984
Inventors
Robert A. Miller
Edward J. Condrac
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.