Granted Patent
Utility
US 6,500,375 · App. 09/519,308
Fabrication of seamless tube
Inventors:
Larry Oral Aulick, Robert Glenn Smith, Mark Stephen Weisman, Jr.
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Mar 6, 2000
Inventors
Larry Oral Aulick
Robert Glenn Smith
Mark Stephen Weisman, Jr.
Assignee (at issue)
Lexmark 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.