Granted Patent
Utility
US 6,287,456 · App. 09/420,284
Filtration system with filtrate volume indicator
Inventors:
Jeffrey E. Fish, Elizabeth Deibler Gadsby
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Oct 18, 1999
Inventors
Jeffrey E. Fish
Elizabeth Deibler Gadsby
Assignee (at issue)
Kimberly-Clark Worldwide, 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.