Granted Patent
Utility
US 5,375,938 · App. 08/093,262
Interior sleeve for tubular members
Inventor:
Greg P. Bartlow
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Jul 15, 1993
Inventor
Greg P. Bartlow
Assignee (at issue)
Steccone Products Co.
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.