Granted Patent
Utility
US 4,474,949 · App. 06/492,089
Freeze dried microfibrilar cellulose
Inventors:
Pronoy K. Chatterjee, Kambiz B. Makoui
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: May 6, 1983
Inventors
Pronoy K. Chatterjee
Kambiz B. Makoui
Assignee (at issue)
Personal Products Company
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.