Granted Patent
Utility
US 4,634,940 · App. 06/594,823
Sine wave deflection circuit for bidirectional scanning of a cathode ray tube
Inventors:
Willem H. Groeneweg, Juergen F. Hemme
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Mar 29, 1984
Inventors
Willem H. Groeneweg
Juergen F. Hemme
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.