Granted Patent
Utility
US 5,044,849 · App. 07/521,227
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Inventor:
David E. Starke
Patented Case
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Granted: Sep 3, 1991
Filed: Jun 1, 1990
Inventor
David E. Starke
Assignee (at issue)
Emhart 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.