Granted Patent
Utility
US 4,229,433 · App. 06/040,077
Method for controlling viral diseases in plants
Inventors:
Taichiro Shigematsu, Tetsuya Shibahara, Tetsuo Nakajima
Patented Case
View Patent ↗
Granted: Oct 21, 1980
Filed: May 17, 1979
Inventors
Taichiro Shigematsu
Tetsuya Shibahara
Tetsuo Nakajima
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.