Granted Patent
Utility
US 5,232,315 · App. 07/899,708
End adapter for railcar pneumatic outlet
Inventor:
Richard H. Dugge
Patented Case
View Patent ↗
Granted: Aug 3, 1993
Filed: Jun 17, 1992
Inventor
Richard H. Dugge
Assignee (at issue)
Ace Industries Co., Ltd.
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.