Granted Patent
Utility
US 4,698,312 · App. 06/889,748
Stabilizing blood cells with aromatic polyaldehyde for use in hematology controls and calibrators
Inventors:
Show-Chu Wong, Harbans S. Deol, Debra L. Harz
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: Jul 28, 1986
Inventors
Show-Chu Wong
Harbans S. Deol
Debra L. Harz
Assignee (at issue)
Fisher Scientific Company, L.L.C.
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.