Granted Patent
Utility
US 4,911,700 · App. 06/943,100
Cross-linked microfibrillated cellulose prepared from pure generating particles
Inventors:
Kambiz B. Makoui, Pronoy K. Chatterjee
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Dec 18, 1986
Inventors
Kambiz B. Makoui
Pronoy K. Chatterjee
Assignee (at issue)
McNeil-PPC, 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.