Granted Patent
Utility
US 4,685,591 · App. 06/687,526
Dispensing tube package
Inventors:
Suzanne E. Schaefer, John P. Eckstein
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Dec 28, 1984
Inventors
Suzanne E. Schaefer
John P. Eckstein
Assignee (at issue)
American Can Company
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.