Granted Patent
Utility
US 6,200,367 · App. 09/358,782
Water washable stainless steel HEPA filter
Inventor:
Terrance D. Phillips
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Jul 22, 1999
Inventor
Terrance D. Phillips
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.