Granted Patent
Utility
US 4,933,525 · App. 07/327,654
Microwaveable container having temperature indicating means
Inventor:
Eric A. St. Phillips
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Mar 22, 1989
Inventor
Eric A. St. Phillips
Assignee (at issue)
Mobil Oil 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.