Granted Patent
Utility
US 5,261,330 · App. 07/944,507
Drop-frame urban rapid transit car
Inventors:
Emil Veit-Salomon, Arne Kuhnel, Rolf Kramer
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Sep 14, 1992
Inventors
Emil Veit-Salomon
Arne Kuhnel
Rolf Kramer
Assignee (at issue)
ABB Henschel Waggon Union 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.