Granted Patent
Utility
US 6,017,316 · App. 08/878,468
Vacuum control system and method for automated biopsy device
Inventors:
Mark A. Ritchart, Fred H. Burbank, Seth A. Foerster, John Wardle
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Jun 18, 1997
Inventors
Mark A. Ritchart
Fred H. Burbank
Seth A. Foerster
John Wardle
Assignee (at issue)
Biopsys Medical
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.