Granted Patent
Utility
US 6,264,048 · App. 09/383,422
Electric cable coupling for rail-borne vehicles
Inventors:
Christos Ramnialis, Robert J. Ehmke
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Aug 27, 1999
Inventors
Christos Ramnialis
Robert J. Ehmke
Assignee (at issue)
Scharfenbergkupplung GmbH & Co. KG
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.