Granted Patent
Utility
US 4,289,824 · App. 06/082,352
High fluid-holding alloy rayon fiber mass
Inventor:
Frederick R. Smith
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Oct 5, 1979
Inventor
Frederick R. Smith
Assignee (at issue)
Avtex Fibers Inc.
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.