Granted Patent
Utility
US 4,988,513 · App. 07/462,195
Method of treating hypokalemia
Inventor:
Edward J. Griffity
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Jan 9, 1990
Inventor
Edward J. Griffity
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.