Granted Patent
Utility
US 4,867,301 · App. 07/171,390
Conveyor belt and system for single direction lateral curved travel
Inventors:
Gerald C. Roinestad, Michael R. Straight
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Mar 21, 1988
Inventors
Gerald C. Roinestad
Michael R. Straight
Assignee (at issue)
Ashworth Bros., 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.