Granted Patent
Utility
US 5,115,926 · App. 07/568,773
Coupler member retention in a railway vehicle
Inventor:
Horst T. Kaufhold
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Sep 26, 1990
Inventor
Horst T. Kaufhold
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.