Granted Patent
Utility
US 4,358,032 · App. 06/219,990
Snap container closure
Inventor:
Sidney M. Libit
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Dec 24, 1980
Inventor
Sidney M. Libit
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.