Granted Patent
Utility
US 4,512,700 · App. 06/587,612
Nesting drums-method of making the same
Inventor:
Cesar Santoni
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Mar 8, 1984
Inventor
Cesar Santoni
Assignee (at issue)
Greif Bros. Corporation
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.