Granted Patent
Utility
US 4,577,842 · App. 06/611,489
Self-stabilizing dry viscous spring damper
Inventor:
Emile M. Shtarkman
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: May 17, 1984
Inventor
Emile M. Shtarkman
Assignee (at issue)
Imperial Clevite 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.