Granted Patent
Utility
US 6,029,989 · App. 08/990,658
Vehicle access step assembly
Inventors:
John W. Stuart, Gerald W. Askew
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Dec 15, 1997
Inventors
John W. Stuart
Gerald W. Askew
Assignee (at issue)
Navistar International Transportation
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.