Granted Patent
Utility
US 4,322,868 · App. 06/186,235
Sewer and catch basin cleaner
Inventor:
James C. Wurster
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: Sep 11, 1980
Inventor
James C. Wurster
Assignee (at issue)
Super Products LLC
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.