Granted Patent
Utility
US 4,677,066 · App. 06/564,899
Method for promoting fusion of plant protoplast
Inventors:
Shigeru Takahashi, Yasuhiro Maeda
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Dec 23, 1983
Inventors
Shigeru Takahashi
Yasuhiro Maeda
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.