Granted Patent
Utility
US 5,558,985 · App. 08/258,505
Stable hemoglobin reference solution
Inventors:
Ching-Chun Chiang, Stanley M. Liffman
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Jun 10, 1994
Inventors
Ching-Chun Chiang
Stanley M. Liffman
Assignee (at issue)
Bionostics, 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.