Granted Patent
Utility
US 4,744,987 · App. 07/081,584
Coprocessed microcrystalline cellulose and calcium carbonate composition and its preparation
Inventors:
Dev K. Mehra, Kenneth P. West, J. Donald Wiggins
Patented Case
View Patent ↗
Granted: May 17, 1988
Filed: Aug 3, 1987
Inventors
Dev K. Mehra
Kenneth P. West
J. Donald Wiggins
Assignee (at issue)
FMC 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.