Granted Patent
Utility
US 4,301,640 · App. 06/092,689
Container closing means and process
Inventor:
Richard G. Haas
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: Nov 9, 1979
Inventor
Richard G. Haas
Assignee (at issue)
BROWN LLC
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.