Granted Patent
Utility
US 5,288,015 · App. 07/947,478
Single web bifold with outgoing and return envelope
Inventor:
Dean N. Sauerwine
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Sep 21, 1992
Inventor
Dean N. Sauerwine
Assignee (at issue)
Moore Business Forms, 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.