Granted Patent
Utility
US 5,397,571 · App. 08/036,795
Co-extraction of azadirachtin and neem oil
Inventors:
Michael T. Roland, John J. Blouin
Patented Case
View Patent ↗
Granted: Mar 14, 1995
Filed: Mar 25, 1993
Inventors
Michael T. Roland
John J. Blouin
Assignee (at issue)
W.R. Grace & Co. Conn.
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.