Granted Patent
Utility
US 4,944,449 · App. 07/391,300
Oversize laser mailer and return envelope and method
Inventor:
Eric Randell Schmidt
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Aug 9, 1989
Inventor
Eric Randell Schmidt
Assignee (at issue)
Wallace Computer Services, 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.