Granted Patent
Utility
US 6,428,219 · App. 09/578,079
Business courtesy envelopes
Inventors:
Mark Andrew Stier, Keith Bussell, Christopher Patrick Miller
Patented Case
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Granted: Aug 6, 2002
Filed: May 23, 2000
Inventors
Mark Andrew Stier
Keith Bussell
Christopher Patrick Miller
Assignee (at issue)
STAMPS.COM 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.