Granted Patent
Utility
US 5,323,950 · App. 08/098,990
Flexible, adjustable welding backup mandrel
Inventor:
Octavio L. Mamon
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Jul 29, 1993
Inventor
Octavio L. Mamon
Assignee (at issue)
General Dynamics Corporation Space Systems Division
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.