Granted Patent
Utility
US 6,146,471 · App. 09/288,260
Spherical plain bearing and method of manufacturing thereof
Inventors:
Werner Hartl, Bogdan T. Mania
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Apr 8, 1999
Inventors
Werner Hartl
Bogdan T. Mania
Assignee (at issue)
Roller Bearing Company of America, 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.