Granted Patent
Utility
US 5,725,715 · App. 08/674,406
Squeezable tubular container and process for the production thereof
Inventors:
Keizo Makuuchi, Fumio Yoshii, Yasuo Futami, Masanobu Ishiyama, Gen Miyamoto, Hideo Kushida, Sei Nakajima, Takahiro Kurihara, Ryoji Sugawara, Hideshi Kawachi, Mikio Nakagawa
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Jul 2, 1996
Inventors
Keizo Makuuchi
Fumio Yoshii
Yasuo Futami
Masanobu Ishiyama
Gen Miyamoto
Hideo Kushida
Sei Nakajima
Takahiro Kurihara
Ryoji Sugawara
Hideshi Kawachi
Mikio Nakagawa
Assignees (at issue)
Mitsui Petrochemical Industries, Ltd.
YOSHINO KOGYOSHO CO., LTD.
Japan Atomic Energy Research Institute
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.