Granted Patent
Utility
US 4,240,036 · App. 06/029,615
Linearized three-state switching amplifier
Inventor:
Thomas Kohler
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: Apr 13, 1979
Inventor
Thomas Kohler
Assignee (at issue)
General Electric 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.