Granted Patent
Utility
US 4,932,633 · App. 07/273,584
Hemostasis valve
Inventors:
Wade M. Johnson, Edward A. Barlow, Gregory G. Brucker
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Nov 21, 1988
Inventors
Wade M. Johnson
Edward A. Barlow
Gregory G. Brucker
Assignee (at issue)
Schneider-Shiley (U.S.A.) 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.