Granted Patent
Utility
US 4,590,133 · App. 06/697,158
Bearing material
Inventor:
Kenneth Lloyd
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Feb 1, 1985
Inventor
Kenneth Lloyd
Assignee (at issue)
D.A.B. Industries, 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.