Granted Patent
Utility
US 5,250,344 · App. 07/960,183
Cast material with encapsulated lubricant
Inventors:
Tony A. Williamson, Martin Van Buren, Arthur A. Massucco, Richard S. Lindstrom
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Oct 9, 1992
Inventors
Tony A. Williamson
Martin Van Buren
Arthur A. Massucco
Richard S. Lindstrom
Assignee (at issue)
Zimmer, 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.