Granted Patent
Utility
US 5,000,167 · App. 07/389,018
Blood collection tube holder safety guard
Inventor:
Richard A. Sunderland
Patented Case
View Patent ↗
Granted: Mar 19, 1991
Filed: Aug 3, 1989
Inventor
Richard A. Sunderland
Assignee (at issue)
Sherwood Medical Company
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.