Granted Patent
Utility
US 6,136,189 · App. 09/008,845
Enhanced in-bottle filtration mechanism and techniques
Inventors:
Rose C. Smith, John E. Nohren, Jr.
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Jan 20, 1998
Inventors
Rose C. Smith
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.