Granted Patent
Utility
US 4,333,576 · App. 06/124,332
Carrier assembly for use with a rotary railroad coupler system
Inventor:
John W. Kaim
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Feb 25, 1980
Inventor
John W. Kaim
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.