Granted Patent
Utility
US 4,247,008 · App. 05/973,912
Method and system for sorting envelopes
Inventor:
William G. Dobbs
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Dec 28, 1978
Inventor
William G. Dobbs
Assignee (at issue)
Stephens Industries, 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.