Granted Patent
Utility
US 4,987,987 · App. 07/388,933
Torsional vibration damping mechanism
Inventors:
Gerald D. Damon, David P. Godlew
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Aug 3, 1989
Inventors
Gerald D. Damon
David P. Godlew
Assignee (at issue)
Eaton 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.