Granted Patent
Utility
US 4,300,383 · App. 06/070,312
Crankshaft damper resonance monitor
Inventors:
Michael J. Zinn, Robert C. Bremer, Jr., Lewis E. Williams, Hans O. Haupt
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Aug 27, 1979
Inventors
Michael J. Zinn
Robert C. Bremer, Jr.
Lewis E. Williams
Hans O. Haupt
Assignee (at issue)
Wallace Murray Corporation
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.