Granted Patent
Utility
US 5,622,939 · App. 07/934,015
Glucan preparation
Inventors:
Spiros Jamas, D. Davidson Easson, Jr., Gary R. Ostroff
Patented Case
View Patent ↗
Granted: Apr 22, 1997
Filed: Aug 21, 1992
Inventors
Spiros Jamas
D. Davidson Easson, Jr.
Gary R. Ostroff
Assignee (at issue)
Alpha-Beta Technology, 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.