Granted Patent
Utility
US 6,248,981 · App. 09/689,109
Sealed food container and method of ensuring delivery of the container in a heated state
Inventor:
Robert Check
Patented Case
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Granted: Jun 19, 2001
Filed: Oct 12, 2000
Inventor
Robert Check
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.