Granted Patent
Utility
US 4,911,291 · App. 07/326,797
Packaging set for solid articles
Inventors:
Fumio Iwata, Nobuo Nishio, Takuo Tsuchida
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Mar 21, 1989
Inventors
Fumio Iwata
Nobuo Nishio
Takuo Tsuchida
Assignee (at issue)
Takeda Chemical Industries Ltd.
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.