Granted Patent
Utility
US 5,671,129 · App. 08/428,213
Electronic switched-mode power supply for supplying power to an accumulator
Inventor:
Gerhard Lang
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Aug 4, 1995
Inventor
Gerhard Lang
Assignee (at issue)
The Braun 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.