Granted Patent
Utility
US 5,142,893 · App. 07/701,742
Tube mill
Inventors:
William Rozmus, Rudy M. Trbovich
Patented Case
View Patent ↗
Granted: Sep 1, 1992
Filed: May 17, 1991
Inventors
William Rozmus
Rudy M. Trbovich
Assignee (at issue)
Italimplanti 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.