Granted Patent
Utility
US 6,670,589 · App. 10/255,154
Heat retentive food tray with cover
Inventor:
Burk Wyatt
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Sep 25, 2002
Inventor
Burk Wyatt
Assignee (at issue)
Aladdin Temp-Rite, LLP
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.