Granted Patent
Utility
US 6,723,667 · App. 09/743,592
Pack preparation
Inventors:
Masato Saito, Akihiro Kuroda, Yoshikuni Yamashita
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Mar 19, 2001
Inventors
Masato Saito
Akihiro Kuroda
Yoshikuni Yamashita
Assignee (at issue)
KANEBO, LIMITED
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.