Granted Patent
Utility
US 5,651,579 · App. 08/528,157
Stairway for a motor coach
Inventor:
John Krieger
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Sep 14, 1995
Inventor
John Krieger
Assignee (at issue)
Motor Coach Industries Limited
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.