Granted Patent
Utility
US 4,530,673 · App. 06/538,032
Series spring vibration dampers
Inventor:
Paul E. Lamarche
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Sep 30, 1983
Inventor
Paul E. Lamarche
Assignee (at issue)
BorgWarner 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.