Granted Patent
Utility
US 4,282,121 · App. 06/083,128
Resilient starch graft polymer polyhydric alcohol product
Inventor:
Phillip W. Goodrich
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Oct 9, 1979
Inventor
Phillip W. Goodrich
Assignee (at issue)
Henkel Limited
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.