Granted Patent
Utility
US 4,469,463 · App. 06/488,571
Scrub sponge with projection and well
Inventor:
Ronald R. Van Overloop
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Apr 25, 1983
Inventor
Ronald R. Van Overloop
Assignee (at issue)
The Kendall Company LP
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.