Granted Patent
Utility
US 4,622,030 · App. 06/603,065
Reverse folded convolutely wound tampon tube
Inventors:
Donald A. Sheldon, Richard R. Tews
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Apr 23, 1984
Inventors
Donald A. Sheldon
Richard R. Tews
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.