Granted Patent
Utility
US 4,452,721 · App. 06/441,689
Suspensions containing microfibrillated cellulose
Inventors:
Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Nov 15, 1982
Inventors
Albin F. Turbak
Fred W. Snyder
Karen R. Sandberg
Assignee (at issue)
International Telephone and Telegraph 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.