Granted Patent
Utility
US 4,405,949 · App. 06/360,741
Liquid cooling in projection cathode ray tubes
Inventors:
Richard L. Hockenbrock, Paul Strauss
Patented Case
View Patent ↗
Granted: Sep 20, 1983
Filed: Mar 22, 1982
Inventors
Richard L. Hockenbrock
Paul Strauss
Assignee (at issue)
Zenith Radio 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.