Granted Patent
Utility
US 4,731,380 · App. 06/900,557
Tolerstat as an agent for diabetic periodontitis
Inventor:
David Wood
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Aug 26, 1986
Inventor
David Wood
Assignee (at issue)
American Home Products Corp. (Del)
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.