Granted Patent
Utility
US 4,767,039 · App. 07/059,250
Backpack and insulated container
Inventor:
Jeffrey M. Jacober
Patented Case
View Patent ↗
Granted: Aug 30, 1988
Filed: Jun 5, 1987
Inventor
Jeffrey M. Jacober
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.