Granted Patent
Utility
US 4,884,851 · App. 07/149,646
Wheel trim retention
Inventors:
Heinrich J. Hempelmann, Eugene M. Pruss
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Jan 28, 1988
Inventors
Heinrich J. Hempelmann
Eugene M. Pruss
Assignee (at issue)
NI Industries, 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.