Granted Patent
Utility
US 6,200,471 · App. 09/228,746
Bottle specialty water filters
Inventor:
John E. Nohren, Jr.
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Jan 12, 1999
Inventor
John E. Nohren, Jr.
Assignee (at issue)
Innova Pure Water, Inc.
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.