Granted Patent
Utility
US 4,582,957 · App. 06/454,894
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Inventors:
Bernard Hayes, Lawrence E. Bergeron, Richard Bergeron, Deane C. Osborne
Patented Case
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Granted: Apr 15, 1986
Filed: Dec 30, 1982
Inventors
Bernard Hayes
Lawrence E. Bergeron
Richard Bergeron
Deane C. Osborne
Assignee (at issue)
Wang Laboratories, Inc.
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.