Granted Patent
Utility
US 5,269,996 · App. 07/943,824
Process for the production of fine denier cellulose acetate fibers
Inventors:
Benedict M. Lee, Charles S. Winebarger
Patented Case
View Patent ↗
Granted: Dec 14, 1993
Filed: Sep 14, 1992
Inventors
Benedict M. Lee
Charles S. Winebarger
Assignee (at issue)
EASTMAN KODAK 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.