Granted Patent
Utility
US 4,381,782 · App. 06/256,067
Highly absorbent materials having good wicking characteristics which comprise hydrogel particles and surfactant treated filler
Inventors:
Peter A. Mazurak, Donald M. Fries
Patented Case
View Patent ↗
Granted: May 3, 1983
Filed: Apr 21, 1981
Inventors
Peter A. Mazurak
Donald M. Fries
Assignee (at issue)
Kimberly-Clark 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.