Granted Patent
Utility
US 4,041,121 · App. 05/625,445
Method for making high fluid-holding fiber mass
Inventor:
Frederick R. Smith
Patented Case
View Patent ↗
Granted: Aug 9, 1977
Filed: Oct 24, 1975
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.