Granted Patent
Utility
US 5,000,745 · App. 07/273,282
Hemostatis valve
Inventors:
Robert L. Guest, Alexander S. Withers
Patented Case
View Patent ↗
Granted: Mar 19, 1991
Filed: Nov 18, 1988
Inventors
Robert L. Guest
Alexander S. Withers
Assignee (at issue)
Edward Weck Incorporated
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.