Granted Patent
Utility
US 4,580,564 · App. 06/502,008
Finger pricking device
Inventor:
Michael Andersen
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Jun 7, 1983
Inventor
Michael Andersen
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.