Granted Patent
Utility
US 4,253,055 · App. 05/770,956
Adjustable switching current regulator
Inventor:
Ronald Alan Gatten
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Feb 22, 1977
Inventor
Ronald Alan Gatten
Assignee (at issue)
American Optical 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.