Granted Patent
Utility
US 5,425,875 · App. 08/247,183
Screen scraper for trash racks
Inventor:
Terry Duperon
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: May 20, 1994
Inventor
Terry Duperon
Assignee (at issue)
Learman & McCulloch and Reising, Ethington, Barnard, Perry & Milton
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.