Granted Patent
Utility
US 5,603,348 · App. 08/432,513
Damped poppet valve
Inventor:
Kerry G. Geringer
Patented Case
View Patent ↗
Granted: Feb 18, 1997
Filed: May 1, 1995
Inventor
Kerry G. Geringer
Assignee (at issue)
SAUER GmbH
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.