Granted Patent
Utility
US 4,342,724 · App. 06/180,209
Red cell labeling vial
Inventor:
Rama K. Narra
Patented Case
View Patent ↗
Granted: Aug 3, 1982
Filed: Aug 21, 1980
Inventor
Rama K. Narra
Assignee (at issue)
E.R. SQUIBB & SONS. 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.