Granted Patent
Utility
US 5,658,228 · App. 08/550,655
Tamper evident container and related apparatus
Inventors:
Peter T. Van de Geijn, Kenneth H. Bealer, Edward M. Earnest, Kenneth H. Kuykendall, Sr., Larry S. Maccherone
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jan 25, 1996
Inventors
Peter T. Van de Geijn
Kenneth H. Bealer
Edward M. Earnest
Kenneth H. Kuykendall, Sr.
Larry S. Maccherone
Assignee (at issue)
Sweetheart Cup Company 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.