Granted Patent
Utility
US 5,509,548 · App. 08/366,609
Coupling head housing of a central buffer coupling
Inventor:
Joachim Kreher
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Dec 30, 1994
Inventor
Joachim Kreher
Assignee (at issue)
Scharfenbergkupplung GmbH
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.