Granted Patent
Utility
US 6,488,692 · App. 09/520,468
Access and cannulation device and method for rapidly placing same and for rapidly closing same in minimally invasive surgery
Inventors:
Paul A. Spence, Warren P. Williamson, IV, George Christakis
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Mar 7, 2000
Inventors
Paul A. Spence
Warren P. Williamson, IV
George Christakis
Assignee (at issue)
Origin Medsystems, 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.