Granted Patent
Utility
US 6,638,277 · App. 09/897,483
Tumor ablation needle with independently activated and independently traversing tines
Inventors:
Dean Schaefer, David A. Paulk, John Sherry
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Jul 2, 2001
Inventors
Dean Schaefer
David A. Paulk
John Sherry
Assignee (at issue)
Scimed Life Systems, 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.