Granted Patent
Utility
US 4,738,658 · App. 06/909,698
Tapered hemostatic device for use in conjunction with a catheter for alleviating blood leakage and method for using same
Inventors:
Alfred E. Magro, Michael L. Rishton
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Sep 19, 1986
Inventors
Alfred E. Magro
Michael L. Rishton
Assignee (at issue)
Aries 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.