Granted Patent
Utility
US 5,656,578 · App. 08/619,881
Monocarbonates, use thereof and process for the preparation of compositions containing monocarbonates
Inventors:
Masahide Tanaka, Tetsuo Hayashi, Takashi Hayashi, Kinya Mizui, Kunihiko Takeuchi, Hajime Oyoshi
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Mar 20, 1996
Inventors
Masahide Tanaka
Tetsuo Hayashi
Takashi Hayashi
Kinya Mizui
Kunihiko Takeuchi
Hajime Oyoshi
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.