Granted Patent
Utility
US 6,048,480 · App. 08/742,539
Ultra-high molecular weight polyethylene
Inventor:
Christina Doyle
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Nov 1, 1996
Inventor
Christina Doyle
Assignee (at issue)
Howmedica International 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.