Granted Patent
Utility
US 4,316,128 · App. 06/159,328
Television receiver focus voltage circuit
Inventor:
Shinichi Shiratsuchi
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: Jun 13, 1980
Inventor
Shinichi Shiratsuchi
Assignee (at issue)
RCA 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.