Granted Patent
Utility
US 5,152,809 · App. 07/552,781
Scrub puff
Inventor:
Henry Mattesky
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Jul 16, 1990
Inventor
Henry Mattesky
Assignee (at issue)
Herbert Glatt
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.