Granted Patent
Utility
US 4,850,955 · App. 06/936,888
Body fluid transfer device
Inventor:
John B. Newkirk
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Dec 2, 1986
Inventor
John B. Newkirk
Assignee (at issue)
Codman & Shurtleff, 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.