Granted Patent
Utility
US 6,140,550 · App. 08/884,593
Water-absorbent article and method
Inventors:
Thomas W. Beihoffer, Anthony S. Tomlin
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Jun 27, 1997
Inventors
Thomas W. Beihoffer
Anthony S. Tomlin
Assignee (at issue)
BASF SE
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.