Granted Patent
Utility
US 4,377,543 · App. 06/310,949
Strength and softness control of dry formed sheets
Inventors:
Irene Beatrice Strohbeen, James H. Dinius
Patented Case
View Patent ↗
Granted: Mar 22, 1983
Filed: Oct 13, 1981
Inventors
Irene Beatrice Strohbeen
James H. Dinius
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.