Granted Patent
Utility
US 4,244,011 · App. 06/069,952
Rechargeable flashlight
Inventors:
Ronald O. Hammel, William J. Barcus, Irwin C. Cone
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Aug 27, 1979
Inventors
Ronald O. Hammel
William J. Barcus
Irwin C. Cone
Assignee (at issue)
The Gates Rubber Company
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.