Granted Patent
Utility
US 5,939,185 · App. 08/959,972
Bearing material of silicon carbide
Inventors:
Jochen Greim, Hubert Thaler, Michael Fundus
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Oct 29, 1997
Inventors
Jochen Greim
Hubert Thaler
Michael Fundus
Assignee (at issue)
Elektroschmelzwerk Kempten GmbH
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.