Granted Patent
Utility
US 5,611,328 · App. 08/530,004
Heat retentive food service base
Inventor:
Michael B. McDermott
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Sep 19, 1995
Inventor
Michael B. McDermott
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.