Granted Patent
Utility
US 4,428,560 · App. 06/326,529
Outlet coupling member for a propellant storage construction and method of making the same
Inventor:
Joseph J. Erdelsky
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Dec 2, 1981
Inventor
Joseph J. Erdelsky
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.