Granted Patent
Utility
US 4,758,772 · App. 07/064,050
Discharge indicating means for a storage battery
Inventor:
Gerhard Lang
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Jun 19, 1987
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.