Granted Patent
Utility
US 5,439,817 · App. 08/006,484
Method of preparation of purified alkaline protease
Inventors:
Jayarama K. Shetty, Chimanbhai P. Patel, Mary Ann Nicholson
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Jan 21, 1993
Inventors
Jayarama K. Shetty
Chimanbhai P. Patel
Mary Ann Nicholson
Assignee (at issue)
Solvay Enzymes, 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.