Granted Patent
Utility
US 4,637,044 · App. 06/600,881
Phase selectable circuit for use in a stereo demodulator
Inventor:
Abraham E. Rindal
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Apr 16, 1984
Inventor
Abraham E. Rindal
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.