Granted Patent
Utility
US 5,980,927 · App. 08/775,528
Method and apparatus for administering analgesics, and method for making same device
Inventors:
Timothy S. Nelson, Matthew A. Bergan
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Jan 2, 1997
Inventors
Timothy S. Nelson
Matthew A. Bergan
Assignee (at issue)
Medtronic, 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.