Granted Patent
Utility
US 5,288,296 · App. 07/456,238
Production of microbial field crop inoculants
Inventors:
Dennis E. McCabe, Brian J. Martinell, Alan Paau, Lori L. Graham-Weiss
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Dec 27, 1989
Inventors
Dennis E. McCabe
Brian J. Martinell
Alan Paau
Lori L. Graham-Weiss
Assignee (at issue)
W. R. Grace & Co.
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.