Granted Patent
Utility
US 4,962,170 · App. 07/401,582
Method of making highly absorptive polymers
Inventors:
Richard C. Chromecek, Milan F. Sojka, Lon L. Weiss
Patented Case
View Patent ↗
Granted: Oct 9, 1990
Filed: Aug 31, 1989
Inventors
Richard C. Chromecek
Milan F. Sojka
Lon L. Weiss
Assignee (at issue)
Dow Corning Corporation
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.