Granted Patent
Utility
US 6,565,749 · App. 09/628,632
Microorganism filter and method for removing microorganism from water
Inventors:
Kenneth C. Hou, Donald Stephen Bretl, Richard D. Hembree
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Jul 31, 2000
Inventors
Kenneth C. Hou
Donald Stephen Bretl
Richard D. Hembree
Assignee (at issue)
The Procter & Gamble Company
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.