Granted Patent
Utility
US 4,604,313 · App. 06/602,993
Selective layering of superabsorbents in meltblown substrates
Inventors:
Timothy McFarland, Theodore B. Lang
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: Apr 23, 1984
Inventors
Timothy McFarland
Theodore B. Lang
Assignee (at issue)
Kimberly-Clark 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.