Granted Patent
Utility
US 4,861,427 · App. 07/166,283
Bacterial cellulose as surface treatment for fibrous web
Inventors:
Donald C. Johnson, Amar N. Neogi, Henry A. LeBlanc
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Mar 10, 1988
Inventors
Donald C. Johnson
Amar N. Neogi
Henry A. LeBlanc
Assignee (at issue)
Weyerhaeuser NR 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.