Granted Patent
Utility
US 5,980,918 · App. 08/957,529
.beta.-D-glucan topical composition
Inventor:
Barbara Kure Klein
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Oct 24, 1997
Inventor
Barbara Kure Klein
Assignee (at issue)
Brennen Medical, 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.