Granted Patent
Utility
US 5,338,544 · App. 08/023,736
CryIIB protein, insecticidal compositions and methods of use thereof
Inventor:
William P. Donovan
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Feb 26, 1993
Inventor
William P. Donovan
Assignee (at issue)
Ecogen, Inc.
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.