Granted Patent
Utility
US 4,583,912 · App. 06/590,413
Damped dynamic vibration absorber
Inventors:
James H. Ball, Pradip Sheth, Keith E. Rouch
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Mar 16, 1984
Inventors
James H. Ball
Pradip Sheth
Keith E. Rouch
Assignee (at issue)
Allis-Chalmers 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.