Granted Patent
Utility
US 5,803,234 · App. 08/609,195
Roller drive system for vehicle conveyor
Inventors:
Tadeusz Podkanski, Michael Graf
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Mar 1, 1996
Inventors
Tadeusz Podkanski
Michael Graf
Assignee (at issue)
Ancra International LLC
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.