Granted Patent
Utility
US 5,402,934 · App. 08/117,664
Z-fold mailer with window and return envelope
Inventor:
Dean N. Sauerwine
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Sep 8, 1993
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.