Granted Patent
Utility
US 5,605,578 · App. 08/383,769
Method for cleaning outdoor surface such as vinyl siding
Inventors:
Charles L. Hawes, Mark Thompson
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Feb 3, 1995
Inventors
Charles L. Hawes
Mark Thompson
Assignee (at issue)
Armor All Products 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.