Granted Patent
Utility
US 4,246,884 · App. 06/067,417
Plate warmer
Inventor:
Edward B. Vandas
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Aug 17, 1979
Inventor
Edward B. Vandas
Assignee (at issue)
MCGRAW-EDISON COMPANY
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.