Granted Patent
Utility
US 5,010,857 · App. 07/567,829
Rocker arm
Inventors:
Heinrich J. Hempelmann, Eugene P. Manier
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Aug 15, 1990
Inventors
Heinrich J. Hempelmann
Eugene P. Manier
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.