Granted Patent
Utility
US 5,823,151 · App. 08/930,529
Valve gear cam follower in an internal combustion engine
Inventors:
Harald Elendt, Michael Haas, Gerhard Maas
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Oct 20, 1997
Inventors
Harald Elendt
Michael Haas
Gerhard Maas
Assignee (at issue)
INA-WALZLAGER SCHAEFFLER KG
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.