Granted Patent
Utility
US 5,367,573 · App. 08/086,946
Signature data object
Inventor:
John Quimby
Patented Case
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Granted: Nov 22, 1994
Filed: Jul 2, 1993
Inventor
John Quimby
Assignee (at issue)
Digital Equipment 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.