Granted Patent
Utility
US 5,846,774 · App. 08/821,559
Chlorella virus promoters
Inventor:
Yuannan Xia
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Mar 21, 1997
Inventor
Yuannan Xia
Assignee (at issue)
Bionebraska, 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.