Granted Patent
Utility
US 4,630,616 · App. 06/766,681
Bone marrow needle
Inventor:
Carl W. Tretinyak
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Aug 19, 1985
Inventor
Carl W. Tretinyak
Assignee (at issue)
BERKLEY, 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.