Granted Patent
Utility
US 6,475,964 · App. 08/510,272
Motor oil with high dispersivity and good wear protection characteristics
Inventors:
Peter Neudoerfl, Horst Pennewiss, Gerhard Renner
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Aug 2, 1995
Inventors
Peter Neudoerfl
Horst Pennewiss
Gerhard Renner
Assignee (at issue)
ROEHM GMBH & CO. 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.