Granted Patent
Utility
US 5,229,112 · App. 07/363,318
Combatting plant insect pests with plant-colonizing microorganisms containing the toxin gene B. thuringiensis as a chromosomal insertion
Inventors:
Mark Obukowicz, Frederick J. Perlak, Lidia S. Watrud
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Jun 7, 1989
Inventors
Mark Obukowicz
Frederick J. Perlak
Lidia S. Watrud
Assignee (at issue)
Monsanto Company
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.