Granted Patent
Utility
US 6,523,813 · App. 10/159,865
Fluid-filled vibration damping device
Inventor:
Kazuhiko Kato
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: May 31, 2002
Inventor
Kazuhiko Kato
Assignee (at issue)
TOKAI RUBBER INDUSTRIES, LTD.
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.