Granted Patent
Utility
US 4,337,998 · App. 06/140,528
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Inventor:
Algerd Basiulis
Patented Case
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Granted: Jul 6, 1982
Filed: Apr 15, 1980
Inventor
Algerd Basiulis
Assignee (at issue)
Hughes Aircraft Company
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.