Granted Patent
Utility
US 4,351,474 · App. 06/165,726
Mailer with sticker-type sign
Inventors:
Robert Kaelblein, John H. Jones
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Jul 3, 1980
Inventors
Robert Kaelblein
John H. Jones
Assignee (at issue)
Beatrice Foods Co.
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.