Granted Patent
Utility
US 6,449,790 · App. 09/609,971
Transit boarding platform panel
Inventor:
Kenneth Szekely
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Jul 3, 2000
Inventor
Kenneth Szekely
Assignee (at issue)
Astra Capital Incorporated
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.