Granted Patent
Utility
US 4,139,846 · App. 05/811,827
Method and apparatus for supervising battery energy level
Inventor:
Frederick J. Conforti
Patented Case
View Patent ↗
Granted: Feb 13, 1979
Filed: Jun 30, 1977
Inventor
Frederick J. Conforti
Assignee (at issue)
Pittway 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.