Granted Patent
Utility
US 4,577,757 · App. 06/642,470
Grooved base package
Inventors:
Gerald O. Hustad, Ray H. Griesbach, James E. Anderson
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Aug 20, 1984
Inventors
Gerald O. Hustad
Ray H. Griesbach
James E. Anderson
Assignee (at issue)
Oscar Mayer Foods 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.