Granted Patent
Utility
US 4,812,401 · App. 07/051,978
Reversible agglutination mediators for separating cells from whole blood
Inventors:
Thomas L. Tarnowski, Cheng-I Lin, Edwin F. Ullman
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: May 19, 1987
Inventors
Thomas L. Tarnowski
Cheng-I Lin
Edwin F. Ullman
Assignee (at issue)
Syntex (U.S.A.) LLC
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.