Granted Patent
Utility
US 6,042,535 · App. 08/896,072
Flow-around valve
Inventor:
Christopher H. Porter
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Jul 17, 1997
Inventor
Christopher H. Porter
Assignee (at issue)
SRS Medical Systems, LLC
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.