Granted Patent
Utility
US 5,382,620 · App. 08/063,762
Resin composition
Inventors:
Yasushi Nagase, Masami Kobayashi, Tatsuo Kato, Shinichi Imuta
Patented Case
View Patent ↗
Granted: Jan 17, 1995
Filed: May 20, 1993
Inventors
Yasushi Nagase
Masami Kobayashi
Tatsuo Kato
Shinichi Imuta
Assignee (at issue)
Mitsui Petrochemical 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.