Granted Patent
Utility
US 4,122,485 · App. 05/783,215
Method and apparatus for simulating magnetic environment of television receivers
Inventors:
William Arthur Sonntag, Theodore Frederick Simpson
Patented Case
View Patent ↗
Granted: Oct 24, 1978
Filed: Mar 31, 1977
Inventors
William Arthur Sonntag
Theodore Frederick Simpson
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.