Granted Patent
Utility
US 4,949,765 · App. 06/200,347
Cleaning apparatus and method
Inventor:
Richard F. Creeron
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: May 31, 1988
Inventor
Richard F. Creeron
Assignee (at issue)
First Brands Corporation
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.