Granted Patent
Utility
US 4,965,347 · App. 07/019,186
Beta-D-glucan, and its production and uses
Inventors:
Akira Misaki, Yoshiaki Sone, Masakazu Mitsuhashi, Toshio Miyake
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Feb 25, 1987
Inventors
Akira Misaki
Yoshiaki Sone
Masakazu Mitsuhashi
Toshio Miyake
Assignee (at issue)
KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJO
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.