Granted Patent
Utility
US 4,565,298 · App. 06/698,704
Safe opening container lid
Inventor:
Keiji Taniuchi
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Feb 6, 1985
Inventor
Keiji Taniuchi
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.