Granted Patent
Utility
US 4,846,339 · App. 07/024,523
Flat wire conveyor with differential pitch
Inventor:
Gerald C. Roinestad
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Mar 11, 1987
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.