Granted Patent
Utility
US 6,292,381 · App. 09/465,861
AC to DC power supply with supplemental energy storage
Inventors:
Peter Neumann, Louis J. Vassos
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Dec 16, 1999
Inventors
Peter Neumann
Louis J. Vassos
Assignee (at issue)
S-B Power Tool Corporation
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.