Granted Patent
Utility
US 5,463,940 · App. 08/249,141
Proofing oven
Inventor:
Michael D. Cataldo
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: May 25, 1994
Inventor
Michael D. Cataldo
Assignee (at issue)
Dunkin' Donuts Incorporated
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.