Granted Patent
Utility
US 4,979,628 · App. 07/372,761
Containers having one or more integral annular bands of increased thickness
Inventor:
Edward S. Robbins, III
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Jun 29, 1989
Inventor
Edward S. Robbins, III
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.