Granted Patent
Utility
US 6,446,418 · App. 09/675,255
Packaging device
Inventors:
Mikio Maekawa, Mitsuharu Ikeda
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Sep 29, 2000
Inventors
Mikio Maekawa
Mitsuharu Ikeda
Assignee (at issue)
ILLINOIS TOOL WORKS 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.