Granted Patent
Utility
US 4,472,477 · App. 06/390,739
Fracturable fiber cross-sections
Inventor:
Bobby M. Phillips
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Jun 21, 1982
Inventor
Bobby M. Phillips
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.