Granted Patent
Utility
US 4,394,901 · App. 06/217,205
Modular plastic conveyor belt
Inventor:
Gerald C. Roinestad
Patented Case
View Patent ↗
Granted: Jul 26, 1983
Filed: Dec 16, 1980
Inventor
Gerald C. Roinestad
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.