Granted Patent
Utility
US 6,003,912 · App. 08/630,031
Bi-metal vehicle bumper structure
Inventors:
Donald W. Schonhoff, Gerald P. Pokriefka, John A. DiGasbarro
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Apr 9, 1996
Inventors
Donald W. Schonhoff
Gerald P. Pokriefka
John A. DiGasbarro
Assignee (at issue)
Chrysler Group LLC
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.