Granted Patent
Utility
US 4,394,612 · App. 06/336,891
Battery charging circuit
Inventors:
Emil Emerle, Alex F. Gawron
Patented Case
View Patent ↗
Granted: Jul 19, 1983
Filed: Jan 4, 1982
Inventors
Emil Emerle
Alex F. Gawron
Assignee (at issue)
Skil 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.