Granted Patent
Utility
US 4,618,849 · App. 06/666,721
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Inventor:
John H. Bruestle
Patented Case
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Granted: Oct 21, 1986
Filed: Oct 31, 1984
Inventor
John H. Bruestle
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.