Granted Patent
Utility
US 4,246,327 · App. 06/080,528
High energy-density battery system
Inventors:
Paul M. Skarstad, Thomas G. Hayes
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Oct 1, 1979
Inventors
Paul M. Skarstad
Thomas G. Hayes
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.