Granted Patent
Utility
US 5,660,280 · App. 08/527,944
Variable thickness plastic molded food service tray used in rethermalization cabinet
Inventors:
Steven H. Wiederhold, Clifford M. Oelfke
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Sep 14, 1995
Inventors
Steven H. Wiederhold
Clifford M. Oelfke
Assignee (at issue)
Seco Products 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.