Granted Patent
Utility
US 4,437,860 · App. 06/294,843
Disposable diaper with elasticized leg openings
Inventors:
Wayne C. Sigl, Richard H. Frick
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Aug 21, 1981
Inventors
Wayne C. Sigl
Richard H. Frick
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.