Granted Patent
Utility
US 4,850,281 · App. 07/190,588
Traction wheel turn for power and free conveyor
Inventor:
Raymond H. Kurek
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: May 5, 1988
Inventor
Raymond H. Kurek
Assignee (at issue)
Automatic Systems, Inc.
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.