Granted Patent
Utility
US 4,670,686 · App. 06/857,046
CRT internal magnetic shield contact spring
Inventors:
Raymond L. Muenkel, Raymond E. Keller
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Apr 29, 1986
Inventors
Raymond L. Muenkel
Raymond E. Keller
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.