Granted Patent
Utility
US 5,583,170 · App. 08/539,493
Mixtures with self-lubricating properties
Inventor:
Dieter Wrobel
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Oct 6, 1995
Inventor
Dieter Wrobel
Assignee (at issue)
Bayer Aktiengesellschaft
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.