Granted Patent
Utility
US 5,941,510 · App. 09/109,226
Metal/elastomeric bumper for air springs
Inventors:
David E. Grass, Mark D. Hilburger, Daniel J. Leonard, Mohamad Taghizadeh, Michael K. Whitaker
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Jun 30, 1998
Inventors
David E. Grass
Mark D. Hilburger
Daniel J. Leonard
Mohamad Taghizadeh
Michael K. Whitaker
Assignee (at issue)
Bridgestone Firestone
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.