Granted Patent
Utility
US 4,677,349 · App. 06/846,406
Self converging deflection yoke for in-line gun color CRT
Inventor:
Joseph H. Ruby
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Mar 31, 1986
Inventor
Joseph H. Ruby
Assignee (at issue)
Sperry Corp.
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.