Granted Patent
Utility
US 4,473,073 · App. 06/340,939
Myringotomy tube inserter and method for inserting myringotomy tubes
Inventor:
W. Dale Darnell
Patented Case
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Granted: Sep 25, 1984
Filed: Jan 20, 1982
Inventor
W. Dale Darnell
Assignee (at issue)
MICROTEK MEDICAL, 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.