Granted Patent
Utility
US 4,685,472 · App. 06/573,058
Specimen collector
Inventor:
Rudolph Muto
Patented Case
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Granted: Aug 11, 1987
Filed: Jan 23, 1984
Inventor
Rudolph Muto
Assignee (at issue)
Rudolph Muto
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.