Granted Patent
Utility
US 5,305,505 · App. 08/046,433
Process of making a multi-section bomb casing
Inventor:
James D. Ruhlman
Patented Case
View Patent ↗
Granted: Apr 26, 1994
Filed: Apr 12, 1993
Inventor
James D. Ruhlman
Assignee (at issue)
National Forge Company
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.