Granted Patent
Utility
US 4,316,549 · App. 06/139,491
Railway car coupler
Inventor:
Richard F. Klimowicz
Patented Case
View Patent ↗
Granted: Feb 23, 1982
Filed: Apr 11, 1980
Inventor
Richard F. Klimowicz
Assignee (at issue)
Dresser Industries, Inc.
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.