Granted Patent
Utility
US 5,743,301 · App. 08/562,449
Metal pipe having upset ends
Inventor:
Thomas E. Winship
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: Nov 24, 1995
Inventor
Thomas E. Winship
Assignee (at issue)
Shaw Industries Group, 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.