Granted Patent
Utility
US 5,400,568 · App. 07/932,658
Method and apparatus for making and filling a bag
Inventors:
Toshihiro Kanemitsu, Kaoru Hayashi, Kazufumi Matsui
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Aug 20, 1992
Inventors
Toshihiro Kanemitsu
Kaoru Hayashi
Kazufumi Matsui
Assignee (at issue)
Idemitsu Petrochemical Co., 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.