Granted Patent
Utility
US 4,733,804 · App. 06/909,872
Liquid dispensing container having ribbed construction
Inventors:
William A. Slat, Richard C. Darr
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Sep 22, 1986
Inventors
William A. Slat
Richard C. Darr
Assignee (at issue)
Plastipak Packaging, Inc.
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.