Granted Patent
Utility
US 4,845,231 · App. 07/155,386
Tetrazoles and their use as hypoglycemic agents
Inventor:
Kenneth L. Kees
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Feb 12, 1988
Inventor
Kenneth L. Kees
Assignee (at issue)
Amerimas Home Products, 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.