Granted Patent
Utility
US 4,882,273 · App. 06/447,046
Method of screening microorganisms for the production of extracellular enzymes
Inventor:
Robert O. Horwath
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Dec 6, 1982
Inventor
Robert O. Horwath
Assignee (at issue)
Nabisco Brands, 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.