Granted Patent
Utility
US 5,616,420 · App. 08/297,925
Laminate film
Inventors:
Ryuso Yamaoka, Yoshinori Ishii, Kunio Kondo, Kazuto Wakita, Iwao Tsurutani
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Aug 31, 1994
Inventors
Ryuso Yamaoka
Yoshinori Ishii
Kunio Kondo
Kazuto Wakita
Iwao Tsurutani
Assignees (at issue)
GUNZE LIMITED
UBE 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.