Granted Patent
Utility
US 4,431,741 · App. 06/331,479
Hypothyroid control serum
Inventors:
Jerome M. Lewis, George Henry Parsons
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Dec 17, 1981
Inventors
Jerome M. Lewis
George Henry Parsons
Assignee (at issue)
Baxter Travenol Laboratories, 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.