Granted Patent
Utility
US 4,352,487 · App. 06/207,909
Viscous spring damper
Inventor:
Emile M. Shtarkman
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Nov 18, 1980
Inventor
Emile M. Shtarkman
Assignee (at issue)
Gould 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.