Granted Patent
Utility
US 4,577,803 · App. 06/577,883
Containers
Inventor:
David J. Owen
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Feb 7, 1984
Inventor
David J. Owen
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
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.