Granted Patent
Utility
US 6,132,440 · App. 09/158,446
Apparatus and method for positive closure of an internal tissue membrane opening
Inventors:
David Hathaway, Brian Patton, Keith L. March
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Sep 22, 1998
Inventors
David Hathaway
Brian Patton
Keith L. March
Assignee (at issue)
Advanced Research & Technology Institute
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.