Granted Patent
Utility
US 4,892,528 · App. 07/269,298
Disposable diaper
Inventors:
Migaku Suzuki, Mitsuzo Ochi, Takeshi Kudo
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Nov 10, 1988
Inventors
Migaku Suzuki
Mitsuzo Ochi
Takeshi Kudo
Assignee (at issue)
Unicharm Corporation
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.