Granted Patent
Utility
US 4,824,704 · App. 07/173,583
3-Methylbutene-1 polymer composition, process for its preparation and container made thereof
Inventors:
Yoshinori Suga, Eiji Tanaka, Nobuo Enokido, Hidehito Kato, Katsuji Shibata
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Mar 25, 1988
Inventors
Yoshinori Suga
Eiji Tanaka
Nobuo Enokido
Hidehito Kato
Katsuji Shibata
Assignee (at issue)
Mitsubishi Chemical 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.