Granted Patent
Utility
US 5,476,469 · App. 08/194,072
Apparatus and method for positive closure of an internal tissue membrane opening
Inventors:
David Hathaway, Brian Patton, Keith L. March
Patented Case
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Granted: Dec 19, 1995
Filed: Feb 9, 1994
Inventors
David Hathaway
Brian Patton
Keith L. March
Assignee (at issue)
THE TRUSTEES OF INDIANA UNIVERSITY
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.