Granted Patent
Utility
US 4,472,818 · App. 06/577,310
Data separator
Inventors:
John Zapisek, John F. Tweedy, Jr., Gus Giulekas
Patented Case
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Granted: Sep 18, 1984
Filed: Feb 6, 1984
Inventors
John Zapisek
John F. Tweedy, Jr.
Gus Giulekas
Assignee (at issue)
STANDARD MICROSYSTEMS 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.