Granted Patent
Utility
US 4,438,263 · App. 06/405,992
Cellulose granules and process for producing the same
Inventor:
Erwin E. Morse
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Aug 6, 1982
Inventor
Erwin E. Morse
Assignee (at issue)
JAMES RIVER CORPORATION OF VIRGINIA
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.