Granted Patent
Utility
US 4,884,731 · App. 07/214,318
Backpack with detachable auxiliary packs
Inventor:
Paul Sibley
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Jul 1, 1988
Inventor
Paul Sibley
Assignee (at issue)
Coleman Outdoor Products, 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.