Granted Patent
Utility
US 4,837,155 · App. 07/053,373
Method of growing trichoderma
Inventor:
Mordechai Tabachnik
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: May 22, 1987
Inventor
Mordechai Tabachnik
Assignee (at issue)
Bio-Technology General Corporation
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.